【简答题】If you see someone drowning, speed is very important. Once you get him out of the water, if he isn’t breathing, you have four minutes before his brain is completely destroyed. Support his neck, lift h...
【简答题】完成对话。 A: Hello, 39483081. B: ____________, Li Ming? A: ____________, this is Li Yang. B: Hi, Li Yang. ____________ is Sun Tao. ____________ are you? A: ____________, thanks, Sun Tao. B: Is Li Ming ___...