Noise pollution generally receives less attention than______air pollution.A.does B.it doesC.receivesD.it does over为什么选A,

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Noise pollution generally receives less attention than______air pollution.A.does B.it doesC.receivesD.it does over为什么选A,

Noise pollution generally receives less attention than______air pollution.A.does B.it doesC.receivesD.it does over为什么选A,
Noise pollution generally receives less attention than______air pollution.
A.does
B.it does
C.receives
D.it does over
为什么选A,

Noise pollution generally receives less attention than______air pollution.A.does B.it doesC.receivesD.it does over为什么选A,
it是形式主语,指代air pollution,而已有air pollution这个主语,所以it在此处有重复,排除BC,
does指代的就是receives此处为避免重复所以排除C,选A.