In the market, vegetables are sold by kilogram, I mean, by weight. A. the; 不填 B.
来源：网络
时间：
推荐文章
In the market, vegetables are sold by _______ kilogram, I mean, by _______ weight.
A. the; 不填 B.不填; 不填 C. the; the D.不填；the
试题答案
A
解析:
介词by表示“以…计”时，若后接单数可数名词，其前要用定冠词，如：by the week 按周，按星期 / by the ton 按吨 / by the yard 按码 / by the meter 按米；若后接抽象名词，则通常不用冠词，如：by volume 按体积 / by weight 按重量。