.光缆在敷设安装过程中,安装固定后最小曲率半径不小于光缆外径的10倍。
参考答案:对
通读对话,选择可以填入相应空白处的五个答案。
A:Tom! It's eight o'clock. 1
B:OK! Could you find my shoes for me, Mom?
A:They are in the box under the desk.
B: 2
A:It's time for breakfast. There are three eggs and some milk on the table.
B:Sorry, Mom. 3 Could you put them in my school bag?
A:Why? 4
B:I'm going to school. I'm late.
A: 5
B:Oh, it's Saturday. I don't go to school on Saturday.
A. Thank you, Mom.
B. What are you doing?
C. I'm going to be late for school.
D. What day it is today?
E. It's time to get up.
F. Where are you going?
1._____ 2._____ 3._____ 4._____ 5._____
下列物质中,属于爆炸品的有()。
A.酒精
B.烟花
C.爆竹
D.炸药