皮皮学，免费搜题
登录
logo - 刷刷题
搜题
【单选题】
中国药典(2000年版)采用紫外光谱法鉴别苯唑西林钠方法为：制成每1ml中含50μg的溶液(pH3.8)，加热30min，以未加热溶液作空白，于339nm波长处有最大吸收，测得吸收度约为0.6。该方法称为
A.
最大吸收波
B.
规定吸收度法
C.
水解产物的最大吸收波长与相应吸收度法
D.
规定吸收波长和相应吸收度比值法
E.
规定吸收波长和相应吸收系数法
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】The trouble with television is that it discourages concentration. Television's variety becomes a , not a stimulus. Its serial, kaleidoscopic exposures force us to follow its lead．The viewer is...
A.
TV easily diverts our attention while we are reading.
B.
TV misleads our attention to violence and other sensational news.
C.
TV commercials frequently interrupt our viewing of a program.
D.
TV programs are short and keep changing constantly.
查看完整题目与答案
【单选题】雷达荧光屏上可能出现多次反射回波的条件是
A.
物标距离较近
B.
物标反射强度较强
C.
A+B
查看完整题目与答案
【判断题】There are two requirements of presentation of documents ,the first is that the documents is all ready,the second is that the content must be correct .
A.
正确
B.
错误
查看完整题目与答案
【单选题】雷达荧光屏上可能出现多次反射回波的条件是______。I.物标距离较近;II.物标反射强度较强;III.不需要特殊要求
A.
Ⅱ.Ⅲ
B.
Ⅰ.Ⅲ
C.
Ⅰ.Ⅱ.Ⅲ
D.
Ⅰ.Ⅱ
查看完整题目与答案
【单选题】以下哪项不能用来判断营养状态良好
A.
皮肤光泽
B.
肌肉结实
C.
体重超标
D.
甲床润泽
E.
皮下脂肪丰满
查看完整题目与答案
【单选题】雷达荧光屏上可能出现多次反射回波的条件是----。
A.
物标距离较近
B.
物标反射强度较强
C.
C A+B
D.
D不需要特殊要求
查看完整题目与答案
【单选题】雷达荧光屏上可能出现多次反射回波的条件是 。
A.
物标距离较近
B.
物标反射强度较强
C.
A＋B
D.
不需要特殊要求
查看完整题目与答案
【单选题】The police were given an order that the stolen documents must be recovered at all ______.
A.
accounts
B.
conditions
C.
payments
D.
costs
查看完整题目与答案
【单选题】听力原文： An Australian engineer is reported to be held hostage in Iraq. His American wife identified 63-year-old Douglas Wood from a video released Sunday in which he is seen pleading for coalition force...
A.
He has been killed in Iraq.
B.
His wife left him when he was in Iraq.
C.
He has been held hostage in Iraq.
D.
He just finished his work in Iraq and will be back to America.
查看完整题目与答案
【单选题】The book Hammer of The Witches was written for _______.
A.
witch-hunting
B.
witch-killin
C.
witch-eating
D.
witch-drinking
查看完整题目与答案
相关题目：
【单选题】The trouble with television is that it discourages concentration. Television's variety becomes a , not a stimulus. Its serial, kaleidoscopic exposures force us to follow its lead．The viewer is...
A.
TV easily diverts our attention while we are reading.
B.
TV misleads our attention to violence and other sensational news.
C.
TV commercials frequently interrupt our viewing of a program.
D.
TV programs are short and keep changing constantly.
查看完整题目与答案
【单选题】雷达荧光屏上可能出现多次反射回波的条件是
A.
物标距离较近
B.
物标反射强度较强
C.
A+B
查看完整题目与答案
【判断题】There are two requirements of presentation of documents ,the first is that the documents is all ready,the second is that the content must be correct .
A.
正确
B.
错误
查看完整题目与答案
【单选题】雷达荧光屏上可能出现多次反射回波的条件是______。I.物标距离较近;II.物标反射强度较强;III.不需要特殊要求
A.
Ⅱ.Ⅲ
B.
Ⅰ.Ⅲ
C.
Ⅰ.Ⅱ.Ⅲ
D.
Ⅰ.Ⅱ
查看完整题目与答案
【单选题】以下哪项不能用来判断营养状态良好
A.
皮肤光泽
B.
肌肉结实
C.
体重超标
D.
甲床润泽
E.
皮下脂肪丰满
查看完整题目与答案
【单选题】雷达荧光屏上可能出现多次反射回波的条件是----。
A.
物标距离较近
B.
物标反射强度较强
C.
C A+B
D.
D不需要特殊要求
查看完整题目与答案
【单选题】雷达荧光屏上可能出现多次反射回波的条件是 。
A.
物标距离较近
B.
物标反射强度较强
C.
A＋B
D.
不需要特殊要求
查看完整题目与答案
【单选题】The police were given an order that the stolen documents must be recovered at all ______.
A.
accounts
B.
conditions
C.
payments
D.
costs
查看完整题目与答案
【单选题】听力原文： An Australian engineer is reported to be held hostage in Iraq. His American wife identified 63-year-old Douglas Wood from a video released Sunday in which he is seen pleading for coalition force...
A.
He has been killed in Iraq.
B.
His wife left him when he was in Iraq.
C.
He has been held hostage in Iraq.
D.
He just finished his work in Iraq and will be back to America.
查看完整题目与答案
【单选题】The book Hammer of The Witches was written for _______.
A.
witch-hunting
B.
witch-killin
C.
witch-eating
D.
witch-drinking
查看完整题目与答案
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