单项选择题

Which of the following would NOT cause a sea cucumber to release its internal organs into the water

A．A touch.
B．Food.
C．Unusually warm water
D．Pollution.
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单项选择题
The author is of the opinion that ______.
A．jeans are likely to be a short-lived fashion
B．jeans are popular only in the United States
C．jeans are likely to be popular for a long time to come
D．jeans are no longer fashionable
单项选择题
What is implied but not directly stated in the passage is that ______.
A．young people have been the leaders in the fight against authority
B．today, jeans are no longer looked down upon
C．jeans are the typical dress of civil rights marchers
D．formerly students were not allowed to wear jeans to class
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