新能源技术路线图:英语问题 请告诉我原因 66.4
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there are 51 students in my class,____23 are boys
a.of whim
b.in which
c.among whom
d.between them
a.of whim
b.in which
c.among whom
d.between them
C
其中有23个是男孩
among是“在……中”