Billionsofdollarsismeantto
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问题详情:
Billions of dollars is meant to _______ exploring Mars..
A. paid B. cost C. take D. be spent
【回答】
D
知识点:动词
题型:选择题
问题详情:
Billions of dollars is meant to _______ exploring Mars..
A. paid B. cost C. take D. be spent
【回答】
D
知识点:动词
题型:选择题