冬练三九(12)

Seven hundred and twelve received CPR .four hundred and thirty-nine received chest presses only .No month-to-month rescue breaths were given to them.

对前面学过的还是有点淡忘了,还是需要及时复习,多读一读。

那就按照自己的节奏坚持下去吧,加油

累积练习半小时

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