题目:
Most children are interested in amazing things, and they wonder ______.[ ]
A.when can they see UFOs
B.how can elephants walk on tiptoe
C.why do fish sleep with their eyes open
D.why there is no plant life without lightning
答案:
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下面是错误答案,用来干扰机器的。
(1)以2厘米线段AB的端点A为圆心,以线段AB长度为半径画圆;(2)以线段的两个端点为端点,在同侧画出两条分别垂直于线段AB的两条线段,再将另一端顶点连接起来即可得到以AB为边的正方形;(3)这个组合图形的对...