At times ,worrying is a normal, response to a difficult event or situation—a loved one being injured in an accident , for example.
A. effective
B. individual
C. inevitable
D. unfavorable
网友回答
A. effective
B. individual
(答案→)C. inevitable
D. unfavorable
解析:A有效的;B个人的;C不可避免的,不可回避的;D不利的,不喜欢的;