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单选题
The width of a rectangular prism is doubled, its length is tripled, and its height is cut in half. If the volume of the original prism was V, what is its new volume?
A
2V
B
4V
C
16V
D
6V
E
3V
参考答案
参考解析
解析：
The volume of the original prism was V=l×w×h. The volume of the new prism is
V=2×3w×(1/2)h=3l×w×h=3V.
The volume of the original prism was V=l×w×h. The volume of the new prism is
V=2×3w×(1/2)h=3l×w×h=3V.
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