问题
选择题
This is the second time I____ the Himalayas as acollege student. [ ]
A. climb
B. had climbed
C. climbed
D. have climbed
答案
答案：D
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This is the second time I____ the Himalayas as acollege student. [ ]
A. climb
B. had climbed
C. climbed
D. have climbed
答案：D
是 （ ）