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问题 单项选择题

在电力系统正常状况下，电网装机容量在300万KW及以上的，对供电频率的允许偏差为（）。

A.±0.2Hz

B.±0.1Hz

C.±0.5Hz

D.0.1Hz

答案

参考答案：A

改错题

假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下作文。文中共有10处语言错误，每句中最多有两处，每处错误仅涉及一个单词的增加，删除或修改。

增加：在缺词处加一个漏字符号（∧），并在其下面写出该加的词。

删除：把多余的词用斜线（\）划掉。

修改：在错的词下划一横线，并在该词下面写出修改后的词。

注意：1. 每处错误及其修改均仅限一词；

2.  只允许修改10处，多者（从第11处起）不计分。

In March 1984, Dr John Fellows, who lived in England, and decided to visit his married daughter in the USA． He bought a return air ticket to New York and flew Kennedy Airport． When he reached, however, he realized that he had forgotten his daughter’s address． Even badly , he discovered he can’t remember her family name too! Dr Fellows spent several hours at the airport tried to think what his daughter’s name was and where it was which she lived, but with much luck． Eventually, he decided that he would have to give up his plan to visit her and he caught a next plane back to England．
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填空题

按照“逐级负责、领导负责、专业负责、分工负责、岗位负责”的管理要求，货车运用管理人员应对列车技术作业造成的事故责任、故障责任及质量责任承担相应的（）。
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