单项选择题

  After the ______ year of 1957, the birth rate in Canada began to decline.

A.summit
B.peak
C.climax
D.top
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单项选择题
People who ______ large amounts of animal fats are more likely to get cancer and heart disease.
A.congest
B.irrigate
C.consume
D.purchase
单项选择题
He was a molecular biologist with good hands, impressive ingenuity, and ______ capacities.
A.intuitive
B.accidental
C.fragile
D.diligent
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