The very ubiquity of electronic communicat
题型：单项选择题
问题：
The very ubiquity of electronic communications can have a surprising downside, notes Richard Kohn, a military historian at the University of North Carolina: a wire becomes accustomed to frequent email from her husband, until he can’t get to a computer. And then her anxiety increases.
A．failure
B．underside
C．drawback
D．consequence