— Many people have been out of work in China.

— And _____ that the government is always taking measures to increase the number of employment. [ ]

A. in spite of

B. because of

C. thanks to

D. in addition to

如图所示，质量为M的三角形木块A静止在水平面上。一质量为m的物体B正沿A的斜面下滑，三角形木块A仍然保持静止。则下列说法中哪一项是不正确的是

A．A对地面的压力大小可能等于

B．水平面对A的静摩擦力可能为零

C．水平面对A静摩擦力方向可能水平向左

D．若B沿A的斜面下滑时受到一沿斜面向上的力F的作用，如果力F的大小满足一定条件，在B下滑的过程中三角形木块A可能会开始滑动