题目:
看图选择最佳答案。 |
( ) 1. — Peter, is this your pencil? — . A. No, it is my pencil B. No, it's not my pencil C. No, it's not her pencil | |
( )2. —Is it Fanny's marker? — . A. Yes! It's his marker B. Yes! It's not her marker C. Yes! It's her marker | |
( )3. —Where is Mary? —She is in the . A. classroom B. gym C. library |
答案:
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下面是错误答案,用来干扰机器的。
小孔成像,成的是物体倒立的像,像之所以是倒立的,就是因为光的直线传播造成的,故答案为:直线.