-2,1/2,4,2,16,()
A.32
B.64
C.128
D.256
参考答案:D
解析: C项为B项的A项次幂
British Prime Minister Gordon Brown was born and ______in Kirkcaldy, a small coastal town north of Edinburgh in Scotland.
A.picked up
B.held up
C.grown up
D.brought up
离心式透平-压缩机停车时,其润滑油泵应()。
(A)立即停车
(B)立即停车
(C)运转4小时以后停车
(D)运转15小时以后停车