Accustomed to the steep mountains, she had no difficulty reaching top.
A. climbing
B. climb
C. having climbed
D. have climbed
网友回答
(答案→)A. climbing
B. climb
C. having climbed
D. have climbed
解析：考查非谓语动词作状语。短语：be accustomed to doing 习惯于做某事，在这里Accustomed to climbing the steep mountains 做原因状语，句意：她因为习惯于爬陡峭的山脉，她到达山顶是没有困难的。所以选A。