二滩水电站在进行雅砻江流域水能资源梯级开发,以()的全新管理模式实施运营管理。
A.流域化
B.集团化
C.科学化
D.经济化
参考答案:A, B, C
劳动者权利的维护的内容、原因与做法。
________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
用F表示压力,用S表示受力面积,用p表示压强,则p=FS.下面对此公式解释正确的是( )
A.物体所受的重力越大,产生的压强越大
B.物体的压力越大,产生的压强越大
C.受力面积越大,产生的压强越大
D.受力面积不变,产生的压强与压力成正比