. The Roman Empire for several centuries. A. exists B. existed C. was existed D.
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. The Roman Empire _____ for severalcenturies.
A. exists B.existed C. wasexisted D. is existing
试题答案
【答案】
B
【解析】

. The Roman Empire _____ for severalcenturies.
A. exists B.existed C. wasexisted D. is existing
【答案】
B
【解析】