发现胀轨跑道且无降温条件或降温无效时，应立即截断钢轨（普通线_爱下问搜题

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问题填空题

发现胀轨跑道且无降温条件或降温无效时，应立即截断钢轨（普通线路应拆开钢轨接头）放散应力，整正线路，夯拍道床，首列放行列车速度不得超过（），并派专人看守、整修线路，逐步提高行车速度。

答案

参考答案：5km/h

完形填空

Different things usually stand for different feelings. Red, for example, is the color of fire, heat, blood and life. People say red is an exciting and active color. They associate（使发生联系） red with a strong feeling like 46 . Red is used for signs of 47 , such as STOP signs and fire engines. Orange is the bright, warm color of 48 in autumn. People say orange is a 49 color. They associate orange with happiness. Yellow is the color of __50__. People say it is a cheerful color. They associate yellow too, with happiness. Green is the cool color of grass in __51__. People say it is a refreshing color. In general, people __52__ two groups of colors: warm colors and cool colors. The warm colors are red, orange and __53__. Where there are warm color and a lot of light, people usually want to be __54__. Those who like to be with __55 _ like red. The cool colors are __56_ and blue. Where are these colors, people are usually worried. Some scientists say that time seems to __57 _ more slowly in a room with warm colors. They suggest that a warm color is a good __58_ for a living room or a __59_ . People who are having a rest or are eating do not want time to pass quickly. __60 colors are better for some offices if the people working there want time to pass quickly.

C．administration

D．frightening

单项选择题

计算机网络的目标是实现

A．数据处

B．文献检索

C．资源共享和信息传输

D．信息传输