根据目前海关的规定，申请成立专业报关企业应有各直属海关批准后，报海关总署备案。
参考答案：错
I like my history teacher because he often ______ us about many interesting events in history and he's
really humorous(幽默的). [ ]
A．says
B．tells
C．speaks
D．talks
压裂机组包括主压车、混砂车、仪表车和管汇车。（）
