As rule, apples are sold by weight and eggs by dozen. A. a; 不填,the B. a; the; th
来源：网络
时间：
推荐文章
As _____rule, apples are sold by_______weight and eggs by _______dozen.
A. a; 不填；the B. a; the; the
C. a; a; the D. the; 不填；不填
试题答案
A
解析:
as a rule(通常地)是固定词组；在度量名词前，表示付工资、卖、租等方式时，用the, 如paid by the hour (day, moth, piece…), sold by the yard (dozen, ton…)，比较by weight (按重量)。