洞内水准点每公里应埋设()个。
A.1个
B.2个
C.3个
D.4个
参考答案:A
概括句意,将单词补充完整。(首字母已给出)
1. My father usually w___________ TV at night.
2. My brother likes r___________ a bike.
3. Do you like p___________ the violin? No, I don't.
4. Alice's father works in a h___________.
5. Amy's mother t___________ English.
目前使用的测卡仪可以精确地测出()以下的应变值。
A、10mm
B、5mm
C、0.1mm
D、0.05mm