问题描述:
________ trees are cut down in the forests every year.
________ trees are cut down in the forests every year.
A.ThousandB.ThousandsC.Thousand ofD.Thousands of
为什么不选 A
________ trees are cut down in the forests every year.
A.ThousandB.ThousandsC.Thousand ofD.Thousands of
为什么不选 A
问题解答:
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