2. 职称英语
  3. A few years ago, computers were used only in business, in medicine, and for scie

A few years ago, computers were used only in business, in medicine, and for scie

游客2024-08-19  4
问题 A few years ago, computers were used only in business, in medicine, and for scientific research, ______ these days they are common in almost all schools.
选项 A、thought
B、whereas
C、so
D、therefore
答案 B
解析
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