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

游客2023-12-27  15

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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