如果两个数的和为零,那么这两个数( )
A.都等于零
B.互为相反数
C.互为倒数
D.无法确定
根据相反数的性质,如果两个数的和为零,那么这两个数互为相反数.只有B符合.
故选B.
Peter had intended to take a job in business, but ________ that plan after the unpleasant experience in
Canada in 2010.[ ]
A. had abandoned
B. abandoned
C. abandon
D. will abandon
行车中如果出现发动机过热,驾驶员应立即靠边停车,(),以防发动机出现“粘缸”现象。
A.马上熄火
B.立即加水降温
C.让发动机怠速运转一段时间
D.调整风扇皮带