单项选择题

Although some scientists ------- the credibility of the work of their assistants, they also ------- their experimental data.

A．take credit for ... appropriate
B．confirm... exploit
C．doubt... revisit
D．undermine... discard
E． suspect... utilize
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单项选择题
His initial broadcasting success as a young man was due at least as much to his considerable professional ------- as it was to his father's broadcasting connections.
A．aplomb
B．uncertainty
C．hubris
D．seniority
E． nepotism
单项选择题
The attitude that a scientist ------- applying a kind of food colorant scarcely indicates that she is -------, for she may simply carry the patent rights to another colorant which may replace the first.
A．favors... acquiescent
B．advocates ... disinterested
C．opposes... altruistic
D．dislikes ... antagonistic
E． rejects ... opportunistic
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