题目

There _________ some shows this afternoon.    A.will have   B.will be    C.are going to have   D.is going to have 答案:B如图,在正方形ABCD中,E是AB边上任一点,BG⊥CE,垂足为点O,交AC于点F,交AD于点G.(1)证明:BE=AG;(2)当点E是AB边中点时,试比较∠AEF和∠CEB的大小,并说明理由.
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