一级和二级基坑的施工中()对周围建(构)筑物和管线等采取监测措施。
A.必须
B.应
C.可
D.宜
参考答案:A
一个数千位和十位上的数都是5,其余数位上的都是零,这个数是______,是______位数,读作______.
--- Could you help me out?
--- Yes. ___your teacher’s advice, in my opinion, and everythign will be OK.
A.Follow
B.Following
C.To follow
D.Followed