下列各项中不是我国植被面临的主要问题的是[ ]
A．我国森林资源的地理分布不均衡
B．长期以来对森林资源的利用不合理
C．过度放牧
D．草原荒漠化
答案：A
—How was the journey?
—Tiring! I caught the train at the last second but all the seats _____．I stood all the way．
A．would occupy
B．had occupied
C．had been occupied
D．would be occupied
简易交付
