问题
选择题
Accustomed to ________ the steep mountains,he had no difficulty reaching the top.[ ]
A. climbing
B. climb
C. having climbed
D. have climbed
答案
答案：A
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Accustomed to ________ the steep mountains,he had no difficulty reaching the top.[ ]
A. climbing
B. climb
C. having climbed
D. have climbed
答案：A