Grades would______from one or two，for outstanding or excellent，to six or seven，for poor or very poor.
A.suffer
B.differ
C.e
D.range
网友回答
D解析此题考查动词辨析。suffer from“遭受，忍受……”；differ from“与……不同”；e from“来自于”；range from A to B/range between A and B“在A ，B之间变化或变动”。句意：各年级分组将从一两个杰出或优秀的到六七个差的或者很差的。