题目

下列有关不同时期人地关系状况的描述,正确的是      A.采猎文明时期,人类不受地理环境制约   B.农业文明时期,人地关系全面恶化  C.工业文明时期,人地关系初现矛盾       D.后工业文明时期,人地关系走向协调 答案:D—Excuse me,can you tell me the meaning of this word?—Sorry,I don't know. You can _____ in my dictionary.A. look it up B. look up it C. look it for
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