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【简答题】
已知：平行四边形ABCD中，E、F是BC、AB的中点，DE、DF分别交AB、CB的延长线于H、G； （1）求证：BH =AB； （2）若四边形ABCD为菱形，试判断∠G与∠H的大小关系，并证明你的结论．
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The art of control your mind.
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【简答题】(20011江苏镇江,18,4分)化简:
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相关题目：
【多选题】信用的安全主要包括哪些?
A.
来自买方的信用安全
B.
来自卖方的信用安全
C.
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【单选题】What is indicated about Acton Industry?
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It is a brand new business venture.
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It will close its Toowumba site.
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It is small and cheap.
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Its concept is very similar to that of TAF's new product.
B.
It is targeted at young women.
C.
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It is on sale.
B.
It is a new model.
C.
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吲哚美辛
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吡罗昔康
C.
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D.
布洛芬
E.
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【简答题】(20011江苏镇江,18,4分)化简:
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