Prices ______ , in response to harvests, natural disasters and political instability; and when they rise, it takes some time bef

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问题 Prices ______ , in response to harvests, natural disasters and political instability; and when they rise, it takes some time before new sources of supply become available.

选项 A、vibrate
B、fluctuate
C、flutter
D、swing

答案B

解析语义连贯题。正确选项应能作为prices的逻辑谓语表示价格的“波动”，符合要求的只有[A] fluctuate“涨落，波动”。同学们须了解四个近义词意思上的差别和用法搭配上的不同。[B]fluctuate指价格或数量的变动；[A]vibrate指物体快而连续地颤动。[C]flutter“鼓翼，摆动”，常指鸟摆动翅膀。[D]swing指事物有规律地来回运动，情绪或意见的改变等。

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大学英语六级

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