The environmentalists said wild goats’ on the vast grasslands was a good indication of the better environment.
A. escape
B. absence
C. attendance
D. appearance
网友回答
A. escape
B. absence
C. attendance
(答案→)D. appearance
解析：野山羊的出现意味着环境的好转。escape逃跑；absence缺席；attendance到场。