题目内容：
he panic attacks may ____ for only a few minutes; some, however, continue for several hours.A.happen B.begin C.last D.end
参考答案：
选择题：he panic attacks may ____ for only a few minutes;
- 题目分类：西安医学院--大学英语
- 题目类型：选择题
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A.happen B.begin C.last D.end