单项选择题
The new law allows you to（）payment if you think a bill ...
单项选择题The new law allows you to（）payment if you think a bill is incorrect.
A. withhold B. withdraw C. wither D. withstand
A laser beam is used to （）even the hardest substance.A....
单项选择题A laser beam is used to （）even the hardest substance.
A. light up B. repair C. identify D. penetrate
It is probably both that he is going to the meeting on ...
单项选择题It is probably both that he is going to the meeting on time（）by the morning traffic jam.
A. and that he might be delayed B. or that he might be delayed C. and he might be delayed D. otherwise that he might be delayed
