单项选择题


Passage Two
Questions 29 to 31 are based on the passage you have just heard.

A．People and crops.
B．Life and wealth.
C．Poverty and death.
D．Agriculture and bridge.
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单项选择题
A) Because scientists insist they are harmless. B) Because the protestors aren’t very big and powerful. C) Because they are critical for understanding and curing human diseases. D. Because there are enough regulations to protect animals from abuse.
A) Because scientists insist they are harmless. B) Because the protestors aren’t very big and powerful. C) Because they are critical for understanding and curing human diseases. D. Because there are enough regulations to protect animals from abuse.
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phenomena
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