题目内容

如图,下列条件中不能判定AB∥CD的是

(A)∠3=∠4             (B)∠1=∠5                                                                                                                                                                                                                

(C)∠1+∠4=180°      (D)∠3=∠5 

 

【答案】

D

【解析】∠3=∠5是同旁内角相等,但不一定互补,所以不能判定AB∥CD.

故选D.

 

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