画一个半径是2厘米的圆.
根据题意,以O为圆心,以2厘米为半径,画圆如下:
按年龄大小的顺序排一排。
妈妈36岁,爸爸40岁,我7岁,奶奶73岁,爷爷75岁
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— Many people are in great need of extra food.
— Yes. It is a challenge to________all their needs. [ ]
A. satisfy
B. gain
C. practise
D. produce