题目

 We stayed in a quiet hotel, ___________. A. next to it was a thick wood                   B. next to which a thick wood was C. next to it there was a thick wood            D. next to which was a thick wood 答案：D一质量为m的人站在匀加速竖直上升的电梯中，电梯上升的加速度大小为14g，g为重力加速度，则人对电梯的压力大小为（　　）A．14mgB．34mgC．mgD．54mg