学习毒品有关知识，全面了解毒品的危害，有助于青少年远离毒品、_爱下问搜题

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问题单项选择题

学习毒品有关知识，全面了解毒品的危害，有助于青少年远离毒品、拒绝毒品。所以青少年需要学习的毒品知识首先是（）

A.毒品是如何制造出来的

B.毒品会给人带来什么样的感觉

C.毒品有哪些危害

D.毒品价钱是多少

答案

参考答案：C

完形填空

完形填空。

     Lucy is from Canada. Her Chinese is very   1 , she can   2 speaks a little. Tomorrow is Mother's Day.
She wants something   3 her mother. It is   4 today, she wants   5 shopping.
     In the shop, she   6 a nice coat, it's red and white. Lucy likes it   7 , so she buy it   8 her mother. She
buys   9 candies (糖果), too. But she doesn't buy   10 trousers, they are too expensive (昂贵的).

( )1. A. good
( )2. A. only
( )3. A. to
( )4. A. good
( )5. A. to
( )6. A. find
( )7. A. a lot of
( )8. A. for
( )9. A. a bags of
( )10. A. some

B. much
B. has
B. for
B. free
B. going
B. finds
B. very
B. to
B. any
B. any

C. poor
C. also
C. with
C. fine
C. go goes
C. finding
C. a lot
C. with
C. two bags of
C. many

填空题

当x=______时，二次根式

取最小值，其最小值为______．