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题库 / Prep2007E1-SC-1
To meet the rapidly rising market demand for fish and seafood, suppliers are growing fish twice as fast as their natural growth rate, cutting their feed allotment by nearly half and raising them on special diets.
their natural growth rate, cutting their feed allotment
their natural growth rate, their feed allotment cut
growing them naturally, cutting their feed allotment
they grow naturally, cutting their feed allotment
they grow naturally, with their feed allotment cut
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C，suppliers are growing fish twice as fast as (suppliers are) growing fish naturally
D，suppliers are growing fish twice as fast as fish grow naturally
D中第一个growing是现在进行时，表人们正在饲养鱼，第二个grow是一般现在时，指鱼通常具有的自然生长的状态。
比较的时间可以不一致，今天的我比昨天的我好，今天我打球打得比昨天好。
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