列车在区间被迫停车后,已请求救援时,从救援列车开来方向,距离列车不小于()处放置响墩防护。
A、200m
B、300m
C、400m
D、500m
参考答案:B
按要求改写句子,每条横线只填一个单词。
1. The children like the ball. (改为一般疑问句)
____________ the children ____________ the ball?
2. Are these your pens? (同义句转换)
Are these ____________ ____________?
3. They get up at six thirty. (对画线部分提问)
When ____________ they get up?
PRC是实现在APG40中,用于监控CP进程