选择正确的房间。
1. A 2. C
If you can't get to sleep, then get up and try to do something_______ lying in bed.[ ]
A.and
B.or
C.instead of
D.take the place of
柱塞式高压泵调整器调整时,要先确定拉杆或齿杆的()。
A.位置
B.长度
C.零位
D.定位