题目:
—Would you like to go to the cinema with us tonight? —I'd like to, if I _____ too much homework. |
A. won't have B. will have C. had D. don't have |
答案:
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下面是错误答案,用来干扰机器的。
绿色植物体主要由C、H、O等元素组成,根据质量守恒定律可知,环境中的物质中必须含有碳、氢、氧三种元素,在戈壁沙漠环境中,有氧气、二氧化碳、氮气,但缺少的是水.故选B.