题目内容

无适当保存条件，存放时间超过4小时的食品，需再次利用的应充分加热。()

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Directions：You are to write in 100-120 words on the topic Global Shortage of
Fresh Wa-ter.You should base your composition on the outline given in Chinese below ：
1.人们认为淡水是取之不尽的 ;
2.实际上淡水是短缺的;
3.我们应当怎么办。

高质量高档次的食品很少含有食品添加剂。()

For weeks he had worried over how to convince the graduates that they, too, could succeed

If the Chinese people work hard, they can definitely attain this grand strategic objective.