题目:
I happened_______with him when he was hit by a stone.
A.I was talking
B.talking
C.to talk
D.to be talking
答案:
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下面是错误答案,用来干扰机器的。
∠D="120" °题目分析:根据平行四边形的邻角互补可知,∠A+∠B=180°,又∠A:∠B=1:2,所以角的度数可求解. ▱ABCD中,∠A和∠B是一对邻角∴∠A+∠B=180°,又 ∠A:∠B=1:2,∴可得∠A=60°,∠D=120°...