![](https://lstatic.shangxueba.com/jiandati/pc/images/pc_jdt_tittleico.png)
电气化区段运行的机车应有“电化区段()”的标识。
![](https://lstatic.shangxueba.com/jiandati/pc/images/jdt_panel_vip.png)
B.有电危险
C.严禁攀登
D.注意安全
B.Mary had a hot temper. Her doctor prescribed some pills and asked her to take one pill whenever she felt uneasy.
C.John was self-contemptuous as he was a stutterer. His teacher encouraged him to speak in front of the class. At first he could only speak several words. But gradually he could talk more fluently with his classmates.
D.Rose was over-weight and had a liking for sweets. Her doctor asked her to do more exercises and try a healthy diet.
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