题目内容
有些细菌、真菌与动植物共同生活在一起,相互________ ,彼此________ ,一旦分开,两者都不能独自生活,这种现象叫________ ;如地衣。
依存 有利 共生解析:
略
略
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一场大雪后,人们会感到外面万籁俱静,究其原因,你认为正确的是:
| A.大雪后,行驶的车辆减少,噪声减小; | B.大雪蓬松多孔,对噪声有吸收作用; |
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— Would you like ________ with us tonight?
— Yes, but I have to work with my boss.
— Yes, but I have to work with my boss.
| A.having lunch | B.have dinner |
| C.to have lunch | D.to have dinner |