For all its extremes, Venus is a (n) incalculable laboratory for researchers stu

游客2023-12-27 30

问题 For all its extremes, Venus is a (n) incalculable laboratory for researchers studying the weather and climate of earth.

选项 A、invaluable
B、valuable
C、value
D、valueless

答案 A

解析词义辨析incalculable不可计算的，无数的，难以衡量的；而A invaluable无价的，价值无法衡量的；B valuable贵重的，有价值的，颇有价值的；C value价值，估价，评价，价格；D valueless不足道的；因此A为答案。

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