There are ______ Russian(s) and ______ American(s) on board.A.one oneB.one twoC.two two

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There are ______ Russian(s) and ______ American(s) on board.

A.one, one

B.one, two

C.two, two

D.two, one

请帮忙给出正确答案和分析,谢谢!

热搜:关于氨基酸代谢错误的论述是_________。