The new research team was led by the ________engineer.A．mainB．majorC．chiefD．prim_刷题宝

题干

The new research team was led by the ________engineer.

A．main

B．major

C．chief

D．primary

上一题下一题 0.64难度单项选择更新时间:2011-12-07 02:42:28

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