______ as much as one-fourth of all timber harvested is not used proved to be false. 选项: A:The estimate B:It is estimated that C:They are estimated D:The estimate that

______ as much as one-fourth of all timber harvested is not used proved to be false.
选项:
A:The estimate
B:It is estimated that
C:They are estimated
D:The estimate that

出自：河南科技大学大学英语3(专升本)

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