Vegetables are sold by __kilogram,I mean,by__weight.A the,/ B /,/ C the ,the D / ,the
问题描述：
Vegetables are sold by __kilogram,I mean,by__weight.A the,/ B /,/ C the ,the D / ,the
答
选A.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 / b...