题目选项分析

Although 1998 saw several new ventures promoting online distance learning for both college- and graduate-level courses, it was also a year when a large number of faculty members began questioning whether the computer screen was an adequate replacement for the classroom.

Several new ventures were promoting online distance learning in 1998, at both the college level as well as the graduate, but it was also a year for faculty members to begin in large numbers questioning whether the computer screen was an adequate replacement for the classroom.