若报关员记分考核中的记分达到30分,海关可以处以暂停其6个月以内从事报关业务的处罚。( )
参考答案:错
Tom ______ in China now. He called his parents once a week.[ ]
A. is studying
B. will study
C. has studied
D. studied
在架空线路上使用软梯作业或用梯头进行移动作业时,软梯或梯头上一般一人工作。