题目内容
发生心跳骤停，必须在多长时间内重建循环和呼吸
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As soon as the hostess picks up her napkin, you should ____.
It is impolite to ____ with food in your mouth.
You should wait for your food to cool off, but not ____ if it is too hot to eat. No ____ while you are eating.
If you have to leave the table during a meal, say “_____” or “_____”.
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