Joe Curnow first got involved with consumer activism through buying
A. coffee.
B. cocoa.
C. water.
查看答案
People may have fewer children than they want because
A. women are having children at a later age.
B. they are following the example of other people.
C. politicians want them to.
请从所给的四个选项中，选择最符合左侧图形规律的一项。()
如图所示，图中的圆和半圆都两两相切，两个小圆和三个半圆的半径长都是1，则阴影部分的面积为()。
It is ________ to believe that the quantity of water keeps unchanged when it is contained
A. easy to persuade children
B. hard for most children
C. innate of most children
D. difficult for both adults and children
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