单项选择题

From 1965 to 1978 American consumer prices increased at an average annual rate of 5.7 percent. This ominous shift was followed by consumer price gains of 13.3 percent in 1979.

A．promising
B．overwhelming
C．threatening
D．astonishing
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单项选择题
A corps of so-called barefoot doctors are trained in hygiene, preventive medicine, acupuncture, and routine treatment of common diseases.
A．nutrition
B．sanitation
C．nursery
D．welfare
单项选择题
Admiral Cervera knew he was being ordered to certain destruction but felt compelled to obey. He chose the morning of July 3 for a gallant escape attempt.
A．daring
B．futile
C．critical
D．fruitful
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