皮皮学,免费搜题
登录
logo - 刷刷题
搜题
【多选题】
下列关于环境对荧光影响的说法正确的有
A.
荧光强度一般会随温度升高而升高
B.
溶剂极性增加使荧光强度增加
C.
卤素离子是荧光猝灭剂的一种
D.
荧光物质是弱酸或弱碱时,溶液的pH对荧光强度有较大影响
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
【判断题】 在各种股权资本成本中,普通股的资本成本不一定是最高的。( )
A.
正确
B.
错误
【简答题】违反我国《建设工程质量管理条例》的规定,工程监理单位转让工程监理业务的,责令改正,没收违法所得,处( )25%以上50%以下的罚款。
【单选题】25-32题为语法部分,请先行自学练习册上P108页关于“V-ing (2)”的语法内容。 练习册P109,Ex8: 第1题
A.
will return
B.
return
C.
would return
D.
are going to return
【简答题】What should be included in the official transcripts in addition to prior graduate study? Prior __________ .
【单选题】23 In addition to protection, tariffs serve to ________.
A.
generate revenue
B.
subsidize exports
C.
subsidize imports
D.
increase consumption
【简答题】设点电荷Q1=25nC位于(4,-2,7),电荷Q2=60nC位于P2(- 3,4,-2)。 (a)求P(1,2.3)处的电场强度E。 (b)在y轴上哪个点Ex=0?
【单选题】下列不属于梅毒螺旋体筛选实验的是:
A.
FTA-ABS
B.
VDRL
C.
RPR
D.
USR
E.
TRUST
【单选题】The author of the passage quotes the White officer in lines 23-24 primarily in order to provide evidence to support the contention that______
A.
virtually all White officers initially had hostile attitudes toward Black soldiers
B.
Black soldiers were often forced to defend themselves from physical attacks initiated by soldiers from White units
C.
the combat performance of Black units changed the attitudes of White soldiers toward Black soldiers
D.
White units paid especially careful attention to the performance of Black units in battle
E.
respect in the army as a whole was accorded only to those units, whether Black or White, that performed well in battle
【判断题】23判断Thermoplastics are mainly prepared by addition polymerization.
A.
正确
B.
错误
【简答题】Ex.7 P12 Fill in the blanks with the expressions given below. Change the form where necessary . be serious about make sense run into distinguish between thrust upon be attracted to ...
相关题目:
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