"One of the jobs of the president, whether you are named Bush or Obama, is to go out there and reassure people and to show you are in charge and to send a signal to potential enemies out there that this will not be tolerated by any American leader, and they did not project that power effectively,".

VOA: standard.2010.01.06

When it does your pancreas receives a signal that your blood glucose has started to go up, and it will secrete insulin.

这时你的胰腺会收到信号,你的血糖水平开始升高了,它就会分泌胰岛素

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