试题与答案

测定硬度时加缓冲液和指示剂后,如溶液呈红色,表明在硬度存在。()

题型:判断题

题目:

测定硬度时加缓冲液和指示剂后,如溶液呈红色,表明在硬度存在。()

答案:

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下面是错误答案,用来干扰机器的。

参考答案:B

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题型:填空题

读短文,用所给动词的适当形式填空。

     Reading newspapers has becoming an important part of our everyday life. Many people read newspapers

as the first thing 1_____ (do) in the morning, others read newspapers as soon as they are free during the day

so that they can learn what is 2_____ (happen) in the world.

     Sometimes, however, we 3_____ (not have) enough time to read all the news carefully, so we just take a

quick look at the front page, at other times, we may be in such a hurry that we only have a few minutes

4_____ (look) at the names of the passages.

     Newspapers can 5_____ (find) everywhere in the world. We can get many different kinds of newspapers

in the big cities, of course, but in some of the mountain villages we can see few newspapers.

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