-3-6+9-11+2.
-3-6+9-11+2=0-11+2=-9.
两个所受重力大小分别为GA和GB的小球A和B,用轻杆连接,放置在光滑的半球形碗内.小球A、B与碗的球心O在同一竖直平面内,如图所示,若碗的半径为R,细杆的长度为2R,GA>GB,由关于连接两小球的细杆AB静止时与竖直方向的夹角为θ,以下说法正确的是( )
A.arctanGBGA+π4
B.arctanGAGB+π4
C.π2-arctanGAGB
D.π4-arctanGBGA
It is like him to say what he thinks, ________ other people’s feelings.
A.contrary to
B.regardless of
C.in response to
D.in terms of