9.
The president affirmed in his public announcement today that the attack has seriously ______ attempts to achieve peace in the area.
A、
degraded
B、
impaired
C、
diminished
D、
impoverished
【正确答案】
B
【答案解析】
degrade使降级/退化，impair削弱，diminish减少，impoverish使贫穷/枯竭
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