单项选择题

His career _______ in his appointment as director.

A．contaminated
B．culminated
C．contracted
D．contacted
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单项选择题
As ordinary people, scientists are by no means more honest or _______ than other people, but as scientist, they attach special value to honest while they are in their working sphere.
A．ethical
B．ethnic
C．aesthetic
D．esthetic
单项选择题
My grandmother has been ill for two months, so her health has _______.
A．deteriorated
B．diminished
C．dwindled
D．lessened
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