PREP2012 88题求指教

69.  The number of applications for teaching positions in Newtown'spublic schools was 5.7 percent lower in 1993 than in 1985 and 5.9 percent lowerin 1994 than in 1985.  Despite a steadilygrowing student population and an increasing number of teacher resignations,however, Newtown does not face a teacher shortage in the late 1990's.

Which of the following,if true, would contribute most to an explanation of the apparent discrepancyabove?

(A)  Many of Newtown's public schoolstudents do not graduate from high school.

(B)  New housing developmentsplanned for Newtown are slated for occupancy in 1997 and are expected toincrease the number of elementary school students in Newtown's public schoolsby 12 percent.

(C)  The Newtown school board doesnot contemplate increasing the ratio of students to teachers in the 1990's.

(D)  Teachers' colleges in and near Newtown produced fewer graduates in1994 than in 1993.

(E)  In 1993 Newtown's publicschools received 40 percent more applications for teaching positions than therewere positions available.

想了很久都在纠结为什么a不对，求指教求指教     如果中途有人辍学，那么上课的学生少不就需要的老师也少吗