It was 80 years before Christopher Columbus crossed the Atlantic _ Zheng He had sailed to East Africa.(2012.重庆)
A.when |
B.that |
C.after |
D.since |
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It was 80 years before Christopher Columbus crossed the Atlantic _ Zheng He had sailed to East Africa.(2012.重庆)
A.when |
B.that |
C.after |
D.since |