SDH技术中当网络处于同步工作状态时，指针用来进行同步信号间的相位调整；当网络处于失

发布时间：2017-06-27 05:54 │ 来源：www.tikuol.com

题型：判断题

问题：

SDH技术中当网络处于同步工作状态时，指针用来进行同步信号间的相位调整；当网络处于失步时，指针用作频率和相位调准。

考点：铁路通信工技能考试铁路通信工技能考试题库

题型：判断题

配对阅读。左栏是作者在生活中遇到的一些麻烦，右栏是提出的建议。请把两栏搭配起来，把字母编号涂在答题卡上。

小题1:.My best friend in my class is very sad, because her mother is badly ill. I want to help her, but I don’t know what to do.
小题2:I always think about many things before going to bed, so I can’t fall asleep. I feel very sleepy and tired during the day time.
小题3:I like one of the boys in my class. I think I have fallen in love with him. I’m afraid of that my parents and teachers know my secret.
小题4: I want to decorate my room and make it more beautiful and comfortable,but I don’t want to spend too much money on it.
小题5:I bought a pair of sports shoes which cost me 1000 yuan. My grandfather knew this and he was very angry with me, because I spent too much money on the shoes.

A．Don’t fight with him any more. You need to calm down and solve the problem with the teachers’ help.

B．First of all , you have to know that you aren’t old enough to know what real love is. Try to be an ordinary friend with him. You should pay more attention to your school work.

C．Old man had a hard time in the past, so they don’t waste anything in daily life. You should understand your grandfather first. Then you may say sorry to him and don’t waste money any more.

D．If you can’t sleep at night, you’d better relax before going to bed. You may listen to some soft music or read something for fun. Don’t drink tea before you go to bed.

E．You can buy some cheap but beautiful cloth to cover the wall or old furniture. Put up photos you like instead of those expensive ones. Finally, keep your room clean and tidy all the time.
F．You could help her look after her mother and tell her the trouble is nothing, because all of her classmates will give her a hand as long as she needs.
G．You’d better find a chance to talk with them and tell them what you think. I believe they will understand you.

查看答案

题型：判断题

有以下程序　　void fun(char *a, char *b)　　{　a=b; (*a)++;　}　　main(　)　　{　char　c1=''A'',c2=''a'',*p1,*p2;　　　 p1=&c1;　p2=&c2;　fun(p1,p2);　　　 printf("%c%c\n",c1,c2);　　}　　程序运行后的输出结果是（）。

A．Ab

B．aa

C．Aa

D．Bb

查看答案

题型：判断题

持有银行汇票的持票人未在信用社开立存款帐户的个人，可以向（）提示付款。

A、农行

B、工商行

C、交通银行

D、任何一家银行机构

查看答案

题型：判断题

铁合金是金属材料王国的霸主，亚铁盐、铁盐等铁的重要化合物在不同领域中扮演着重要的角色。这些化合物之间可以相互转化，利用转化过程中发生的特征变化，不仅能够实现物质或能量的转化，还可用于化学的定性或定量研究。

(1)写出实现下图各步转化的化学方程式（是离子反应的只写离子方程式）： ①_____________________; ②____， ③____， ④____。

(2)FeCl₃可用做印刷电路铜板的腐蚀剂。在FeCl₃溶液腐蚀印刷电路铜板后的混合溶液中，若Cu²⁺ 、Fe³⁺和Fe²⁺的浓度均为0.10 mol·L^-1，请参照下表给出的数据，从表中所提供的药品中选择除去CuCl₂溶液中的Fe³⁺和Fe²⁺所需的药品： __________________________。

查看答案

题型：判断题

油浸式变压器（电抗器）精益化评价细则要求：冷却系统应有独立的两个电源且能实现自动切换，并有（）。

A.三相电压监测

B.三相电流监测

C.过负荷监测

D.温度监测

查看答案

更多题库