使用压刨应做哪些调试准备？
妊娠期妇女慎用的中成药有（） ["天麻丸","木香分气丸","牛黄上清丸","附子理中丸"]
If the ship sustains such damage that repairs are necessary，the master must put into the nearest port（）such repairs can be effected. ["which","at which","there","at there"]
在CIS形式调研中，常用的调研方式有（） ["参与调研","摩擦调研","非参与调研","磨损调研"]
下列哪一项内容的出现使我们的传统德育受到了冲击（） ["报纸","书籍","网络","电视"]
使用压刨有何基本安全操作要求？
