闸室上面是露天,上面没有填土,当引(泄)水流量较大,渠堤不高时,常采用()。
A. 挡潮闸
B. 节制闸
C. 开敞式水闸
D. 涵洞式水闸
根据文件来源,在一个机关内部可将公文分为( )。
A. 收文、发文
B. 上行文、下行文、平行文
C. 通用公文、专业公文
D. 本机关制发的和内部使用的公文
坝轴线是土坝施工放样的主要依据,要进行土坝的细部放样,还必须进行()。
A. 坝轴线测设
B. 清基开挖线
C. 坝身控制测量
D. 修坡桩测设
Why do we say that lawyers are one of the most reactionary forces in American society
A. They practice the art of distortion in an effort to win legal games where we need honest communications.
B. They promote conflict and blame when we need cooperation and self-responsibility.
C. They promote division where we need unity.
D. All of the above.