Anyone who enters the factory floor should wear a helmet and safety vest at ______ times.

admin2012-04-26  18

问题 Anyone who enters the factory floor should wear a helmet and safety vest at ______ times.

选项 A、any
B、all
C、every
D、each

答案B

解析 at all times一直,始终
转载请注明原文地址:https://jikaoti.com/ti/GkUsFFFM
0

随机试题
最新回复(0)