熔断器是起()作用的一种电器。A、故障保护 B、过压保护 C、过流保护 D、漏电保护

题型:单项选择题

问题:

熔断器是起()作用的一种电器。

A、故障保护

B、过压保护

C、过流保护

D、漏电保护

考点:集输工考试集输中级工考试集输中级工考试题库
题型:单项选择题

阅读理解。

     David and his brother Grey don't go to school in the morning. They go to school after lunch, at one

o'clock. They have math at one-fifteen, David likes math because it's interesting. Greg doesn't like math.

David and Greg have P.E. after math. They like the teacher, Mr. Green and they like P.E. because it's

fun. But Greg's favorite subject is art and David's favorite is music. He plays the piano and the violin.

根据短文内容判断正(T)或误(F)。

( )1. David and Greg have P.E. after math.

( )2. David plays the piano.

(     )3. They go to school in the morning.

(     )4. They don't like P.E. because it's boring.

(     )5. Grey likes his art class.

题型:单项选择题

集存款、取款、贷款、消费、结算、查询为一体的信用工具是 [ ]

A、支票

B、汇票

C、信用卡

D、电子货币

题型:单项选择题

下列几类药物中,哪一类可以减少房水分泌()。

A.缩瞳剂

B.高渗剂

C.碳酸酐酶抑制剂

D.睫状体麻痹剂

E.镇静剂

题型:单项选择题

一个关系数据库文件中的各条记录( )。

A.前后顺序不能任意颠倒,一定要按照输入顺序排列

B.前后顺序可以任意颠倒,不影响数据库中的数据关系

C.前后顺序可以任意颠倒,但排列顺序不同,统计处理的结果就可能不同

D.前后顺序不能任意颠倒,一定要按照关键字段值的顺序排列

题型:单项选择题

插接式母线槽垂直穿过楼板时,要选用()固定。

A.圆钢支架

B.角钢支架

C.扁钢支架

D.弹簧支架

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