单项选择题

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

A．touch.
B．Food.
C．Unusually warm water.
D．Pollution.
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The disappearance of old style hotel porters can be attributed to the fact that ______.
A．few people are willing to do this type of work
B．machines are more reliable than human beings
C．the personal touch is appreciated less nowadays
D．automation has provided cheaper alternatives
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In the writer's opinion, the quality of service is changing because ______.
A．the customers' demands have changed
B．the staff receive more consideration than the customers
C．the customers' needs have increased
D．the staff are less considerate than their employers
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