不受力的物体其状态[ ]
A．一定静止
B．一定是匀速直线运动
C．静止或匀速直线运动
D．静止和匀速直线运动
答案：C
Was it the restaurant where he had dinner with me, if I may ask, _______offered him a job?
A．that
B．where
C．which
D．when
玻璃不导电，那么为什么用玻璃制成的光导纤维却能够通电话呢?
