﹣2的4次幂是( ),144是( )的平方数.
16,±12.
在LCP盘上按压相应的“取消扣车”按钮,在LCP盘上相应的扣车指示灯()。
.
--- Do you think we can get there on time?
--- Yes, ____________ the car doesn’t break down.
A.even if
B.unless
C.until
D.as long as