Danny did all kinds of things to make th

读短文，选答案。

      Hello, my name is Amy. I get up at six forty. I have breakfast at 7: 10. And then I go to school. I have four

classes in the morning and two classes in the afternoon. I have lunch in the canteen at school. I go home at four

fifty. I have dinner at seven o'clock. I go to bed at nine thirty.

1. I get up at _____________.[ ]

A. 6: 40

B. 6: 30

2. I have _____________ at 7: 10. [ ]

A. lunch

B. breakfast

3. I have _____________ classes today.[ ]

A. four

B. six

4. I have lunch at _____________.[ ]

A. school

B. home

5. I go to bed at _____________.[ ]

A. seven o'clock

B. nine thirty

在Rt△ABC中，AC=5，BC=12，则AB边的长是______．

特殊特性应记录进（）。

A.图纸

B.风险分析（如FMEA）

C.控制计划

D.标准的工作/操作说明书

俄国建立单极世界的野心急剧膨胀。

病毒在活细胞内繁殖是专性的，不会感染其它细胞。（）