问题
多项选择题
公共卫生事件仍然威胁着群众的生命和健康，主要表现有（）.
A.新发传染病和人畜共患病不断出现，对人民健康构成严重威胁
B.生产、销售假冒伪劣食品药品违法犯罪活动尚未得到有效遏制，食品药品安全事故多发
C.恐怖主义越来越猖狂
D.社会不稳定因素越来越多
答案
参考答案：A, B
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公共卫生事件仍然威胁着群众的生命和健康，主要表现有（）.
A.新发传染病和人畜共患病不断出现，对人民健康构成严重威胁
B.生产、销售假冒伪劣食品药品违法犯罪活动尚未得到有效遏制，食品药品安全事故多发
C.恐怖主义越来越猖狂
D.社会不稳定因素越来越多
参考答案：A, B
People are busy working every day, so they do not have enough time to do exercises. As a result, many people become too fat or too thin. To keep our bodies healthy, we have to do exercises every day. There are many kinds of exercises. Bending (弯腰) and stretching (伸展) helps us move easily. Before we play ball games or swim, it is better for us to do bending and stretching exercises first. This kind of exercise is sometimes called warm-up exercise. Running is also a good exercise. If we cannot run fast, we can Jog. Jogging means running slowly. Again, before we run or jog, we must do warm-up exercises. Also, we should not run or jog in busy streets. The air there is often dirty. Some people like weight lifting (举重)because it can make their bodies strong. Also, we need to do some warm-up exercises before weight lifting.
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