检测比空气重的可燃气体或有毒气体的检测器,其安装高度应距地平面(或接板)()m。
A.0.3~0.6
B.0.7~0.9
C.1~1.3
D.任意
参考答案:A
Don’t worry. I’ve ____________ a car to pick up the guests at the station at 6 o’clock.
A.arranged
B.arranged for
C.prepared
D.prepared for