问题
单项选择题
对抗铜绿假单胞菌感染有效的药物为
A．阿奇霉素
B．氨苄西林
C．链霉素
D．庆大霉素
E．青霉素V
答案
参考答案：D
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对抗铜绿假单胞菌感染有效的药物为
A．阿奇霉素
B．氨苄西林
C．链霉素
D．庆大霉素
E．青霉素V
参考答案：D
阅读理解。 |
| The students were having their chemistry class. Miss Li was telling the children what water was like. After that, she asked her students, "What's water?" No one spoke for a few minutes. Miss Li asked again, "Why don't you answer my question ? Didn't I tell you what water was like?" Just then a boy put up his hand and said , "Miss Li, you told us that water has no colour or smell. But where to find such kind of water ? The water in the river behind my house is always black and it has a bad smell ." Most of the children agreed with him . "I'm sorry, children," said the teacher, "Our water is getting dirtier and dirtier. That's a problem." |
| 1. The students were having their _______ class. |
[ ] |
| A. English B. Chinese C. chemistry D. maths |
| 2. Miss Li was telling the children what _______ was like. |
[ ] |
| A. water B. air C. earth D. weather |
| 3. A boy said, "The water in the river behind my house is always _______." |
[ ] |
| A. white B. black C. clean D. clear |
| 4. Most of the children _______ the boy. |
[ ] |
| A. agreed with B. wrote to C. heard from D. sent for |
| 5. The water in the river has colour and smell because it getting _______. |
[ ] |
| A. more and more B. less and less C. cleaner and cleaner D. dirtier and dirtier |