We have an united class
Our class is very united
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- 2民航飞机一般的飞行高度是多少?
- 3----Can they ___(swim)?-----No,they_____(sing).
- 4You ____(promise)me the car would be ready on Monday I had to __(stay)later than planned at work
- 5有三个完全相同的金属小球A、B、C,A、B带等量异种电荷,相隔一定距离,两球之间的相互作用大小为F,
- 6在NaBr和KI的混合溶液中通入过量的氯气,然后将溶液蒸干并灼烧,最后烧杯中留下的物质是()
- 7含有反义词的二字词语.
- 8this is my brotherMy little brother is very c__
- 9火车在通过桥量的时候要减速一列一每小时72千米的速度匀速行驶的火车在使近一座铁桥前,作匀减速运动,减
- 10怎么分辨所给的是原子结构图还是分子离子图