诗的语言特征是()
A.包容舒展
B.凝练新奇
C.运作自由
D.个性动感
参考答案:B
------ He should have been warned of the danger.
------_________, but he wouldn’t listen to me.
A.So he was
B.So was he
C.So should he
D.So he should
64D半自动闭塞,只有在区间空闲时,由发车站发出请求发车信号,并收到接车站的同意接车信号之后,发车站的()才能开通,出站信号机才能开放。
A.联锁设备
B.列车进路
C.闭塞机
D.信号按钮