如图所示,T型架ABO可绕过O点且垂直于纸面的轴自由转动,现在其A端和B端分别施以力F1和F2,它们的方向如图所示.则关于这两个力的力矩M1和M2的说法正确的是( ) (A)M1和M2都会引起T型架顺时针方向转动 (B)M1和M2都会引起T型架逆时针方向转动 (C)M1会引起T型架逆时针方向转动,M2会引起物体顺时针方向转动 (D)M1会引起T型架顺时针方向转动,M2会引起物体逆时针方向转动 To increase the production, many factories have some new techniques. A. brought out B. brought in C. brought back D. brought about