皮皮学,免费搜题
登录
logo - 刷刷题
搜题
【单选题】
关于溶剂—非溶剂法制备微囊或微球,下列叙述错误的是( )
A.
实在材料溶液中加入一种对材料不溶的溶剂,引起相分离,而将药物包封成囊或球的方法
B.
药物可以是固体或液体,但溶剂与非溶剂均必须是高沸点的
C.
使用材料,要用有机溶剂溶解
D.
药物是亲水的,不溶于有机溶剂,可混悬或乳化在材料溶液中
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
微信内点击右上角“…”即可分享
反馈
参考答案:
举一反三
【单选题】A large sum of money has been raised for  the_____ of the poorly-educated  children in the mountainous areas. [     ]
A.
profit
B.
favor
C.
advantage
D.
benefit
【判断题】GIF 和 JPG 格式的文件不会感染病毒
A.
正确
B.
错误
【单选题】Not only could Smith identify rock strata by the fossils they contained, he could also see a pattern emerging: certain fossils always appear in more ancient sediments, while others begin to be seen as...
A.
Not only could Smith identify rock strata by the fossils they contained, he could also see a pattern emerging: certain fossils always appear in more ancient sediments, while others begin to be seen as the strata become more recent. The findings of these geologists inspired others to examine the rock and fossil records in different parts of the world. By following the fossils, Smith was able to put all the strata of England's earth into relative temporal sequence. About the same time, Georges Cuvier made the same discovery while studying the rocks around Paris. Soon it was realized that this principal of faunal(animal)succession was valid not only in England or France but virtually everywhere. It was actually a principle of floral succession as well, because plants showed the same transformation through time as did fauna. Limestone may be found in the Cambrian or—300 million years later—in the Jurassic strata, but a trilobite—the ubiquitous marine arthropod that had its birth in the Cambrian—will never be found in Jurassic strata, nor a dinosaur in the Cambrian.
B.
Not only could Smith identify rock strata by the fossils they contained, he could also see a pattern emerging: certain fossils always appear in more ancient sediments, while others begin to be seen as the strata become more recent. By following the fossils, Smith was able to put all the strata of England's earth into relative temporal sequence. The findings of these geologists inspired others to examine the rock and fossil records in different parts of the world. About the same time, Georges Cuvier made the same discovery while studying the rocks around Paris. Soon it was realized that this principal of faunal(animal)succession was valid not only in England or France but virtually everywhere. It was actually a principle of floral succession as well, because plants showed the same transformation through time as did fauna. Limestone may be found in the Cambrian or—300 million years later—in the Jurassic strata, but a trilobite—the ubiquitous marine arthropod that had its birth in the Cambrian—will never be found in Jurassic strata, nor a dinosaur in the Cambrian.
C.
Not only could Smith identify rock strata by the fossils they contained, he could also see a pattern emerging: certain fossils always appear in more ancient sediments, while others begin to be seen as the strata become more recent. By following the fossils, Smith was able to put all the strata of England's earth into relative temporal sequence. About the same time, Georges Cuvier made the same discovery while studying the rocks around Paris. The findings of these geologists inspired others to examine the rock and fossil records in different parts of the world. Soon it was realized that this principal of faunal(animal)succession was valid not only in England or France but virtually everywhere. It was actually a principle of floral succession as well, because plants showed the same transformation through time as did fauna. Limestone may be found in the Cambrian or—300 million years later—in the Jurassic strata, but a trilobite—the ubiquitous marine arthropod that had its birth in the Cambrian—will never be found in Jurassic strata, nor a dinosaur in the Cambrian.
D.
Not only could Smith identify rock strata by the fossils they contained, he could also see a pattern emerging: certain fossils always appear in more ancient sediments, while others begin to be seen as the strata become more recent. By following the fossils, Smith was able to put all the strata of England's earth into relative temporal sequence. About the same time, Georges Cuvier made the same discovery while studying the rocks around Paris. Soon it was realized that this principal of faunal(animal)succession was valid not only in England or France but virtually everywhere. The findings of these geologists inspired others to examine the rock and fossil records in different parts of the world. It was actually a principle of floral succession as well, because plants showed the same transformation through time as did fauna. Limestone may be found in the Cambrian or—300 million years later—in the Jurassic strata, but a trilobite—the ubiquitous marine arthropod that had its birth in the Cambrian—will never be found in Jurassic strata, nor a dinosaur in the Cambrian.
【单选题】The World Cup has been the ______ of this month's events a large number of soccer fans around the world focus their attention on the little 'ball'.
A.
twilight
B.
realms
C.
highlights
D.
headlines
【单选题】The Edinburgh festival has been held in August and September every【21】since 1947. There are a lot of different events in which you can【22】some of the world's greatest actors, musicians, singers【23】dan...
A.
year
B.
month
C.
day
D.
week
【单选题】Which pseudocolumn could you use to identify a unique row in a Flashback Versions Query?()
A.
XID
B.
VERSIONS_PK
C.
VERSIONS_XID
D.
VERSIONS_UNIQUE
【简答题】Progress so far has been very good. _______, we are sure that the project will be completed on time. ) A. However B. Otherwise C. Therefore D. Besides
【单选题】- I came all the way to inform you of the time and place of the meeting. -You could have __________ yourself the trouble by calling me.
A.
shared
B.
spared
C.
cost
D.
removed
【单选题】Could you drive me to the supermarket after supper if _________________?
A.
it is convenient of you
B.
you are convenient
C.
it is convenient to you
D.
you will be convenient
【单选题】The conference has been held to discuss the effect of tourism ______the wildlife in the area.
A.
in
B.
on
C.
at
D.
with
相关题目:
【单选题】Not only could Smith identify rock strata by the fossils they contained, he could also see a pattern emerging: certain fossils always appear in more ancient sediments, while others begin to be seen as...
A.
Not only could Smith identify rock strata by the fossils they contained, he could also see a pattern emerging: certain fossils always appear in more ancient sediments, while others begin to be seen as the strata become more recent. The findings of these geologists inspired others to examine the rock and fossil records in different parts of the world. By following the fossils, Smith was able to put all the strata of England's earth into relative temporal sequence. About the same time, Georges Cuvier made the same discovery while studying the rocks around Paris. Soon it was realized that this principal of faunal(animal)succession was valid not only in England or France but virtually everywhere. It was actually a principle of floral succession as well, because plants showed the same transformation through time as did fauna. Limestone may be found in the Cambrian or—300 million years later—in the Jurassic strata, but a trilobite—the ubiquitous marine arthropod that had its birth in the Cambrian—will never be found in Jurassic strata, nor a dinosaur in the Cambrian.
B.
Not only could Smith identify rock strata by the fossils they contained, he could also see a pattern emerging: certain fossils always appear in more ancient sediments, while others begin to be seen as the strata become more recent. By following the fossils, Smith was able to put all the strata of England's earth into relative temporal sequence. The findings of these geologists inspired others to examine the rock and fossil records in different parts of the world. About the same time, Georges Cuvier made the same discovery while studying the rocks around Paris. Soon it was realized that this principal of faunal(animal)succession was valid not only in England or France but virtually everywhere. It was actually a principle of floral succession as well, because plants showed the same transformation through time as did fauna. Limestone may be found in the Cambrian or—300 million years later—in the Jurassic strata, but a trilobite—the ubiquitous marine arthropod that had its birth in the Cambrian—will never be found in Jurassic strata, nor a dinosaur in the Cambrian.
C.
Not only could Smith identify rock strata by the fossils they contained, he could also see a pattern emerging: certain fossils always appear in more ancient sediments, while others begin to be seen as the strata become more recent. By following the fossils, Smith was able to put all the strata of England's earth into relative temporal sequence. About the same time, Georges Cuvier made the same discovery while studying the rocks around Paris. The findings of these geologists inspired others to examine the rock and fossil records in different parts of the world. Soon it was realized that this principal of faunal(animal)succession was valid not only in England or France but virtually everywhere. It was actually a principle of floral succession as well, because plants showed the same transformation through time as did fauna. Limestone may be found in the Cambrian or—300 million years later—in the Jurassic strata, but a trilobite—the ubiquitous marine arthropod that had its birth in the Cambrian—will never be found in Jurassic strata, nor a dinosaur in the Cambrian.
D.
Not only could Smith identify rock strata by the fossils they contained, he could also see a pattern emerging: certain fossils always appear in more ancient sediments, while others begin to be seen as the strata become more recent. By following the fossils, Smith was able to put all the strata of England's earth into relative temporal sequence. About the same time, Georges Cuvier made the same discovery while studying the rocks around Paris. Soon it was realized that this principal of faunal(animal)succession was valid not only in England or France but virtually everywhere. The findings of these geologists inspired others to examine the rock and fossil records in different parts of the world. It was actually a principle of floral succession as well, because plants showed the same transformation through time as did fauna. Limestone may be found in the Cambrian or—300 million years later—in the Jurassic strata, but a trilobite—the ubiquitous marine arthropod that had its birth in the Cambrian—will never be found in Jurassic strata, nor a dinosaur in the Cambrian.
参考解析:
知识点:
题目纠错 0
发布
创建自己的小题库 - 刷刷题