齿轮齿锯为628mm,模数为()mm。
A、100
B、200
C、300
D、400
参考答案:B
The part in the film _____ the man broke down the door made some of the audience give a cry. [ ]
A. which
B. who
C. where
D. whom
使用未经鉴定合格的包装容器的危险货物,不准出口。( )