问题
选择题
They are broadening the bridge to ____ the flow of traffic．
A．put off
B．speed up
C．turn on
D．work out
答案
答案：B
短语辨析。A推迟；B加速；C打开。D计算除，制定出，锻炼；句意：他们正在拓宽桥梁以加快车流量。
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They are broadening the bridge to ____ the flow of traffic．
A．put off
B．speed up
C．turn on
D．work out
答案：B
短语辨析。A推迟；B加速；C打开。D计算除，制定出，锻炼；句意：他们正在拓宽桥梁以加快车流量。