One soldier was killed and three others were ____ when their tank was hit by a rocket. (wound)
如图所示皮带轮,A轮是主动轮,B轮是从动轮.则传送带上的P点、从动轮上的Q点所受摩擦力方向判断正确的是( )
This kind of bread is terrible. I don't want to eat it________.
2014年5月,***在非盟会议中心发表演讲时,引用了埃塞俄比亚的一句谚语:“蜘蛛合力,足以网住狮子”。该谚语揭示的道理是( )