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单项选择题


Questions 23-26
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A. Only humans respond to emotions by shedding tears.
B. Only humans shed tears to get rid of irritating stuff in their eyes.
C. Only human tears can resist the invading bacteria.
D. Only human tears can discharge certain chemicals.
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单项选择题A. It has seen a steady decline in its profits.B. It has become much more competitive.C. It has lost many customers to foreign companies.D. It has attracted a lot more designers from abroad.

A. It has seen a steady decline in its profits.
B. It has become much more competitive.
C. It has lost many customers to foreign companies.
D. It has attracted a lot more designers from abroad.

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A. Many of them found it difficult to exercise on a plane.
B. Many of them were concerned with their well-being.
C. Not many of them chose to do what she did.
D. Not many of them understood the program.