一般交流耐压试验的频率为（）Hz。
A.40
B.50
C.60
D.55
参考答案：B
第二卷
注意：将答案写在答题卡上。写在本试卷上无效
第三部分 写作（共两节，满分35分）
短文改错（共10小题；每小题1分，满分10分）
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一下作文。文中共有10处语言错误，每句中最多有两处。错误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。
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。
Our class have had a discussing recently on whether it is necessary to start learning English from childhood. Some for it. As little boys and girls have had a very good memory, they can learn a lot of English words by heart very easy. This will help their future English learning. While others don’t agree. They think children have to learning Chinese pinyin at school. If they study Chinese pinyin and English at same time, it will be very easy for them to mix it up. This will do a lot of harm to their Chinese learning and their future English learning. For short, we have not arrived at some agreement yet.
强效、起效慢、作用时间长的肌松药是
A．阿曲库铵苯磺酸盐(Atracurium Be-sylate)B．罗库溴铵(Rocuronium Bromide)C．多库氯铵(Doxaeurium Chloride)D．氯琥珀胆碱(Suxamethonium Chlo-ride)E．米库氯铵(Mivacurium Chloride)
of English words by heart very easy. This will help their future English learning. While others don’t agree. They think children have to learning Chinese pinyin at school. If they study Chinese pinyin and English at same time, it will be very easy for them to mix it up. This will do a lot of harm to their Chinese learning and their future English learning. For short, we have not arrived at some agreement yet.