单项选择题

Most doctors agree that overeating is one of the main health problems, since it places a great ______ on the heart.

A．strain
B．stress
C．strength
D．stroke
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单项选择题
Hugh's girl friend expects him to stop work and do things for her ______.
A．on demand
B．on need
C．in demand
D．in need
单项选择题
The successful signing of the Sino-British agreement aroused ______ praises in Hong Kong.
A．a plenty of
B．a mass of
C．a cloud of
D．a shower of
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