试题与答案

分光光度法测定水中亚硝酸盐氮时,若水样有悬浮物和颜色,需向每100ml试样中加入2m

题型:填空题

题目:

分光光度法测定水中亚硝酸盐氮时,若水样有悬浮物和颜色,需向每100ml试样中加入2ml(),搅拌,静置,过滤,弃去25ml初滤液后,再取试样测定。

答案:

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参考答案:错

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题型:阅读理解

One day a student went to see his teacher. He had been given an important position and now was coming to say goodbye to his teacher. The old man asked him how he would live among high officials. The student answered, “ I will be all right. I have prepared a hundred high hats, one for each official I will meet. I am sure I will succeed.” The teacher got angry on hearing this.  “What?” he cried. “Is this what ten years of my teaching has made of you? Nothing but flatterer(拍马屁的人)?” “Excuse me, honored(尊敬的) master,” the student  rose to his feet and apologized hurriedly. “But you have always been absorbed in(沉浸于) your studies and don’t know how vulgar(庸俗的) the world has come to be. There are few men in the world who are above flatterers like you.” “There is something true in what you said,” the teacher nodded, smiling with one of the student’s “high hats” on.

小题1:The student came to say goodbye to his teacher because_____________.

A.he had got hundred hats to sell

B.he had got a fairly high position in society

C.he wanted to see his parents in his home town

D.he moved away to another city小题2:The student would live among high officials by___________.

A.selling hats to them

B.making a hundred hats for them

C.flattering them

D.serving them小题3:The teacher was angry with__________.

A.himself

B.the society

C.his student

D.high officials小题4:The phrase “rose to his feet” means________.

A.stood up

B.kicked with his feet

C.became quite excited

D.raised his feet小题5:The teacher____________.

A.liked to be flattered as well

B.really knew nothing about the vulgar world

C.was in need of a high hat

D.was satisfied with the new hat

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