玩彩神app谁输了In pics: Sidewalk CPR Day in Los Angeles

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People take part in a hands-only CPR training during the Sidewalk CPR Day in Los Angeles, the United States, June 5, 2018. The American Heart Association joined local fire departments and emergency agencies to train thousands of residents on how to administer hands-only Cardiopulmonary Resuscitation. (Xinhua/Zhao Hanrong)

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