题目内容：
Air pollution is more serious than water pollution.
参考答案：
答案解析：
选择题：Air pollution is more serious than water pollution.
- 题目分类： 大学英语B级
- 题目类型：选择题
- 查看权限：VIP
He is one of the greatest writers in the world.
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He has sympathy for all poor people.
He has sympathy for all poor people.
He had a traffic accident last week.
He had a traffic accident last week.
He can run as fast as Jim.
He can run as fast as Jim.
Good health is an essential part of good life.
Good health is an essential part of good life.