一个数和0相乘,得______,0除以一个______的数还得0.
一个数和0相乘,得0;0除以一个不为0的数,还得0.
故答案为:0,不为0.
瞬时式安全钳制停距离短,制停迅速,常用于高速电梯.()
. You must do your homework now; you ______ computer games all the evening.
A.have been playing
B.play
C.are playing
D.played