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She looks sad. Could you please tell me that prevents her from being as happy as before? [ ]
1年前
Experts believe________people can waste less food by shopping only when it is necessary.
1年前
We put a ____ on ____ of the tree. 我们在树顶放一个星星。
1年前
一间教室的长是8米,宽是6米,高是3米.现在要给教室的屋顶和四面墙壁刷涂料,其中门窗和黑板占26㎡.粉刷的面积是多少平方米?
1年前
在《江上渔者》、《登黄鹤楼》、《望庐山瀑布》三诗中,反映作者对劳动人民同情的诗句是().
1年前