单项选择题

The ______ on the part of government regulators to implement stricter pollution rules is allowing thousands of tons of carbon dioxide to be dumped into the atmosphere.

(A) hesitation
(B) remainder
(C) uniformity
(D) malfunction
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单项选择题
Though the bidder had been determined to win the item at the beginning of the auction, he had no choice but to ______ from the proceedings when the going price topped $10,000.
(A) maneuver
(B) associate
(C) withdraw
(D) elicit
单项选择题
Why has the schedule changed
A．A musician failed to show up.
B．Listeners have started complaining.
C．There is a problem with some equipment.
D．A special interview was recorded.
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