单项选择题


Questions 19 to 22 are based on the conversation you have just heard.

A．Something goes wrong with his computer.
B．He can not finish the documents in time.
C．The computer screen is hurting his eyes.
D．He can not understand the article.
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单项选择题
From the passage, we know that if we are more confident of ourselves, ______.
A．we have the unstoppable feeling out of our wits
B．we have a great influence on others
C．we are inclined to be successful
D．we have the scared feeling from our wits
问答题
1. 最近常有食品安全问题出现2. 食品安全问题危害很大3. 你认为应该如何解决该问题Food Contamination
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