问题
单项选择题
药物作用的特异性靶点不包括( )。
A．受体
B．离子通道
C．酶
D．DNA或RNA
E．作用于蛋白质，使其变性
答案
参考答案：E
解析：[知识点] 药物的作用机制
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药物作用的特异性靶点不包括( )。
A．受体
B．离子通道
C．酶
D．DNA或RNA
E．作用于蛋白质，使其变性
参考答案：E
解析：[知识点] 药物的作用机制
| 完形填空。 | |||
| I work in a school library. There are many kinds of 1 in it. For example (例如), books 2 English, science, history, music, and so on. You 3 do some reading or borrow books from it. But there are some 4 .You must obey (遵守) them. When you are reading in the library, you have to 5 quiet. Don't talk loudly 6 make any noise. You can't listen to music, 7 . You 8 take your bags or wet umbrellas into the library. 9 or drink in the 1ibrary. You can borrow books from the library, but you can't 10 them to others. You have to take good care of (好好保管) them and return them on time (按时归还). If the library books are lost, you have to pay for them. | |||
| ( )1. A. people ( )2. A. about ( )3. A. can ( )4. A. magazines ( )5. A. / ( )6. A. and ( )7. A. also ( )8. A. aren't ( )9. A. No eating ( )10. A. lent | B. books B. in B. have to B. rules B. are B. but B. either B. don't B. Not cat B. lended | C. magazines C. at C. can't C. CDs C. be C. or C. too C. can C. Don't eat C. lends | D. newspapers D. from D. don't D. questions D. have D. because D. and D. can't D. Can't eat D. lend |