题目内容

下面哪一项不属于轨道电路的工作状态( )

A. 调整状态
B. 检修状态
C. 断轨状态
D. 分路状态

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下面说法错误的是( )。

A. 直流轨道电路一般采用蓄电池供电方式,目前已很少使用
B. 开路式轨道电路符合“故障—安全”原则
C. 有绝缘轨道电路利用钢轨绝缘将相邻的轨道电路相互隔离
D. 电化区段轨道电路,既要抗电化干扰,又要保证牵引回流的畅通无阻

无绝缘轨道电路在分界处()钢轨绝缘,轨道电路电流采用不同信号频率。

A. 不设置
B. 设置
C. 有时设置、有时不设置
D. 看情况而定

催眠的目的是让人说出内心的秘密。()

A. 对
B. 错

Cet-6-1.10-Exercise 01O) It’s important to bear in mind that when we offer a structural interpretation of unemployment, a “loss of jobs” means an increase in productivity. Traditionally, economists have argued that productivity increases are a good thing, even though they may cause unemployment for some workers in the short run. In the long run, the economy does not run out of jobs. Rather, new jobs emerge as old jobs disappear. The story we tell is that average well-being rises, and the more people are able to adapt, the more widespread the improvement becomes.

A. While many countries use the smarter EMV cards, the US still clings to its old magstripe technology.
B. Increases in productivity prove beneficial though some people may lose their jobs temporarily.

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