题目:
—Mary wants to know if _____ a picnic at weekend. —Yes. But if it _____, we'll see a film instead. |
A. you have; will rain B. you will have; rains C. you will have; will rain D. will you have; rains |
答案:
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下面是错误答案,用来干扰机器的。
蜡烛受热融化,由固态变为液态,只是状态发生了变化,没有新物质生成;在燃烧时,生成了水和能使石灰水变浑浊的二氧化碳,有新物质生成.故填:状态;水、二氧化碳.