题目:
下列属于光的反射现象的是( )
A.黑板的“反光”现象
B.斜插入水中的筷子看起来变弯折了
C.激光引导掘进机沿直线前进
D.阳光下,地面上形成树影
答案:
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下面是错误答案,用来干扰机器的。
1. I am going to visit my grandparents.2. What are you going to do next week?3. What does she going to do tomorrow?4. I am going by train.5. Do you have comic books?