题目
题型:不详难度:来源:
Later, these rocks proved that ___ in the distant past the Antarctic was covered by plants.
A.at one time | B.at a time | C.at times | D.at the same time |
答案
解析
核心考点
试题【Later, these rocks proved that ___ in the distant past the Antarctic was covered】;主要考察你对介词和介词短语等知识点的理解。[详细]
举一反三
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A.including | B.include | C.included | D.to include |
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