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【多选题】
分光光度计工作环境( )。A.
分光光度计额定电压为220V±22V,50H±1Hz,供电电压不正常会使仪器无法正常工作。
B.
分光光度计安装在坚固平稳的工作台上,且无强烈的震动或持续震动
C.
分光光度计远离高强度磁场,电场及会产生高频波的设备
D.
分光光度计避免强风的直接吹袭,应避免光的直接照射
E.
分光光度计供电电源应有良好的接地(最好具有独立的地线)。
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举一反三
【单选题】I got a headache. Otherwise I ______ to the lecture.
A.
would go
B.
would have gone
C.
went
D.
have
【单选题】听力原文：W: Hi, I'd like to send this package by express mail to San Francisco and I would like to buy a sheet of stamps, please. M: Here are your stamps, and just put the package on the scale. Q: Where d...
A.
In San Francisco.
B.
At an airport.
C.
At a travel agency.
D.
In a post office.
【单选题】- ______? - I’ve got a headache.
A.
What’s the price
B.
What’s the matter with you
C.
What’s your job
D.
What’s your name
【单选题】听力原文：W: Hi, could you lend me the camera, David? M: Hi, Mice. I'd like to, but it belongs to Jane. Who wanted to borrow the camera?
A.
Mary.
B.
Jane.
C.
Alice.
【单选题】I’ve got a bit of a headache. It’s nothing much, _________.
A.
moreover
B.
besides
C.
though
D.
anyhow
【单选题】我国社会主义初级阶段的分配制度是:
A.
公有制为主体、多种所有制经济共同发展
B.
多种所有制经济共同发展
C.
按劳分配为主体、多种分配方式并存
D.
按劳分配和按生产要素分配相结合
【单选题】----I have got a headache. ---- No wonder. You ________ in front of that computer too long.
A.
work
B.
are working
C.
worked
D.
have been working
【单选题】---- __________? ---- I've got a headache.
A.
What's the wrong with you
B.
How are you
C.
What's the matter with you
D.
What you've got
【简答题】请针对第一章和第二章的知识出一份试卷,给出答案和评分依据(满分100分),以word文档形式上传。要求: (1)不能与课堂测验重复, (2)出卷人注明:××组×××,否则作业无效。 (3)不同组题目相似度超过50%,两组作业均为无效。 (4)出题类型: 单选题10个(20分) 多选题5个 (10分) 填空题10个(20分) 判断题10个(10分) 简答题2个(20分) 计算题2个(20分)
【单选题】— Hi. How's it going? — ______. [ ]
A.
I don't like it
B.
I will go to school
C.
Not bad
D.
No
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