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- 2食堂有四分之三吨煤,用去一部分还剩五分之二.食堂还剩多少吨煤?
- 3若ab互为相反数,xy互为倒数,则(a+b)y分之x-xy等于多少?
- 4She thinks shi can learn about Chinese history .She often goes to see Beijing Opera ________her father.
- 5下列河流,冬季会结冰的是( ) A长江 B黄河 C珠江 D松花江
- 6找动词的过去式和过去分词
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- 8分别以H.E.R.O开头的英语单词有哪些?
- 9解方程组:0.3x−y=10.2x−0.5y=19
- 10When do you think your new book will ___?A.come out B.come from C.come up