钻进过程中,钻时较慢时,除司钻外其他人员可以都不在钻台。()
参考答案:错
He is so fat because he usually eats sweat snakes ______ meals. [ ]
A. of
B. in
C. between
D. on
车场调车确需用机车顶车时,严禁(),严禁()。