火车速度比汽车快55%，汽车速度就比火车慢55%。[ ]
错误
Where are the speakers now [A] In a factory, [B] In the classroom. [C] In a shop.
承包商应在完成预付款条件的( )天内，由工程师向业主提交动员预付款证书。
A．28
B．14
C．15
D．30
