反映物种在生态系统中功能和地位的生态学概念是______。
Mary's dress cost______Alice's.
There (are) a large supply (of pens) and notebooks (in the storeroom) (to the left of) the library entrance.
下列结论正确的是______ A．若A+B=Ω，则A，B互为对立事件 B．若A，B为互不相容事件，则A，B互为对立事件 C．若A，B为互不相容事件，则也互不相容 D．若A，B为互不相容事件
More ______, less speed.
Hospital doctors don't go out very often as their work ______ all their time.
胃肠平滑肌的节律性收缩频率主要取决于______
One of his many faults is that he never______any thing very long.
戏剧作品：《雷雨》
茅盾作品中，艺术成就最高的一部革命现实主义巨著是______
如我们所知，韩国人与日本人和中国人一样对围棋(the game of Go)极为热衷。
合伙人对合伙债务承担无限连带责任。
电影作品：《乱世佳人》
人民群众的主体是______
I have some difficulties_____these words. Would you mind_____me your dictionary?
As soon as his party came into ______ they changed the law.
John is not (enough intelligent) to (pass) (this) (economics) class without help.
She was (so kind) (that) I (could) do nothing but (to accept) her help.
马斯洛的需要层次论是怎样划分的?