单选题
10.
This class ______ 20 boys and 30 girls.
A、
is made of
B、
is composed of
C、
is consisted of
D、
composed of
【正确答案】
B
【答案解析】
[考点] 短语辨析
be made of由……而制成；be composed of=consist of由……而组成。句意为：这个班由20个男生和30个女生组成。
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