硬横梁锈蚀面积超过20%时应除锈涂漆。_爱下问搜题

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问题判断题

硬横梁锈蚀面积超过20%时应除锈涂漆。

答案

参考答案：对

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

单项选择题

市场上两只股票甲、乙。某天，股票甲上涨的概率为70％，股票乙上涨的概率为30％。两只股票同时上涨的概率为25％，则这一天两只股票至少有一只上涨的概率为（）。

A．70％

B．30％

C．75％

D．100％