单项选择题

America's most important food crop is ______.

A．wheat
B．rice
C．corn
D．oats

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问答题

Winners do not dedicate their lives to a concept of what they imagine they should bed rather, they are themselves and as such do not use their energy putting on a performance, maintaining pretence, and manipulating others. They are aware that there is a difference between being loving and acting loving, between being stupid and acting stupid, between being knowledgeable and acting knowledgeable. Winners do not need to hide behind a mask.Winners are not afraid to do their own thinking and to use their own knowledge. They can separate facts from opinions and don’t pretend to have all the answers. They listen to others, evaluate what they say, but come to their own conclusions. Although winners can admire and respect other people, they are not totally defined, demolished, bound, or awed by them.Winners do not play helpless , nor do they play the blaming game. Instead, they assume responsibility for their own lives.

填空题

According to the findings by the American researchers, what is of help in relieving patients’ pain and worry

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