Some sorts of fruit are sold ________;others are sold ________.A.by weight … by dozenB.by weight … by the dozenC.by the weight … by the dozenD.by the weight … by dozen
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B解析后半句by the dozen就是第二题中by+定冠词the+某个计量单位的单数的结构,这里表示“按一打计算”,但前半句的weight不是具体某一个计量单位,而是by+单数名词表示“通过什么方式”,所以by weight表示“按照重量”。