浴室按电击危险程度划分为( )区。
A.三个
B.四个
C.五个
D.六个
参考答案:B
At that time,it seemed _____I could not think of the right word anyhow.
A,even if B,in case C,as if D,in order
历史机查询年限为()年,且查询起止日期不允许跨年度。
A.1
B.2
C.3
D.5