双线自动闭塞区段,有反方向运行条件时,出站信号机应装设()。
A、进路表示器
B、发车表示器
C、调车表示器
D、引导信号
参考答案:A
The game was a great success in the United States and it soon _________ to Australia and then to other ___________countries.
A.reached, English spoken
B.floated , English speaking
C.expanded, English spoken
D.spread, English-speaking
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