2. 外语
  3. In the early 20th century, at the advent of the telephone, it was considered a superfluous instrument which would never be of pr

In the early 20th century, at the advent of the telephone, it was considered a superfluous instrument which would never be of pr

admin2005-12-10  135
问题 In the early 20th century, at the advent of the telephone, it was considered a superfluous instrument which would never be of practical use in the average household.
选项 A、appearance
B、popularity
C、dominance
D、consolidation
答案A
解析
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