The new technological revolution in American newspapers has brought increased _______, a wider range of publications and an expansion of newspaper jobs.
A) circulation
B) reproduction
C) manipulation
D) penetration
注：1. circulation 循环；发行量
2. reproduction 复制；生殖
3. manipulation 操纵，控制（永陪词汇）
4. penetration 渗透，弥漫
permeate 渗透，弥漫
permanent 永恒的，永久的
potential 潜力
His career was not noticeably ______by the fact that he had never been to college.
A) prevented
B) restrained
C) hindered
D) refrained
注：1. hinder 阻碍
2. restrain = refrain 限制，抑制