考研英语每日一题解析Day109

Comparisons were drawn between the development of television in the 20th century and the diffusion of printing in the 15th and 16th centuries. Yet much had happened（1） . As was discussed before, it was not  （2）the 19th century that the newspaper became the dominant pre-electronic（3） , following in the wake of the pamphlet and the book and in the（4）  of the periodical.

21.[A] between

[B] before

[C] since

[D] later

22.[A] after

[B] by

[C] during

[D] until

23.[A] means

[B] method

[C] medium

[D] measure

24.[A] process

[B] company

[C] light

[D] form