用两支分度号为K的热电偶测量A区和B区的温差,连接回路如图5-2所示。当热电偶参比端

题型:单项选择题

问题:

用两支分度号为K的热电偶测量A区和B区的温差,连接回路如图5-2所示。当热电偶参比端温度t0为0℃时,仪表指示200℃。则在参比端温度上升到25℃时,仪表的指示值应()。

A.上升

B.下降

C.不变

D.不确定

考点:注册公用设备工程师注册设备工程师(动力)注册设备工程师(动力)题库
题型:单项选择题

A farmer had a cow. He took very good care of this cow and one day when it was ill, he was very worried. He telephoned the vet. “What’s the problem?” The vet asked him when he arrived.

  “My cow's ill,” the farmer said. “I don’t know what's the matter with her. She’s lying down and won’t eat. She's making a strange noise.”

  The vet looked over the cow. "She's certainly ill," he said, "and she needs to take some very strong medicine."

He took a bottle out of his box, put two pills into his hand and said, "Give her these. The pills should make her better."

  “How should I give them to her?” the farmer asked.

  The vet gave him a tube (管子)and said, "Put this tube in her mouth, then put the pills in the tube and blow. That'll make it."

  The next day the vet came to the farm again. The farmer was sitting outside his house and looked more worried.

  “How's your cow?” the vet asked.

  “No change,” the farmer said, “and I’m feeling very strange myself.”

  “Oh?” the vet said, "Why?"

  “I did what you said,” the farmer answered. “I put the tube in the cow's mouth and then put two pills down it.”

  “And?” the vet asked.

  “The cow blew first,” the farmer said.

小题1:In the story, the vet must be _________.

A.the farmer's friend

B.a milk factory

C.a hospital for cows

D.a doctor for animals小题2:The farmer asked the vet for help when his cow _______

A.couldn't lie down

B.didn't eat the pills

C.couldn't make any noise

D.was ill小题3:What medicine did the vet give the farmer?

A.Bottle of pills.

B.A long tube.

C.Two pills.

D.A small box.小题4:The vet taught the farmer how _________.

A.to blow the tube

B.to make the cow take the pills

C.to take the medicine

D.to put the tube in his mouth小题5:Which of the following is true?

A.The farmer ate the pills himself.

B.The cow got better after taking the medicine.

C.The vet came to help farmer change the cow the next day.

D.The farmer waited for the vet outside his house the next day.

题型:单项选择题

一条计算机指令通常包括______两部分。

A) 字节和符号
B) 操作码和操作数
C) 运算数和运算结果
D) 运算符和运算数

题型:单项选择题

下列哪项是确定现阶段慢性病防治工作优先项目的原则

A.社会负担重的疾病
B.政治影响大的疾病
C.A+B
D.有效防治手段的疾病
E.A+B+D

题型:单项选择题

合金一定是单相的吗?固溶体一定是单相的吗?

题型:单项选择题

要选取Word文档的全部内容,可进行的操作有()

A.选择“编辑”菜单的“全选”命令

B.将鼠标移至页面左侧,当鼠标变成向右上箭头时三击鼠标左键

C.快捷键CTRL+Q

D.快捷键CTRL+A

E.在文档左上角开始按鼠标左键,向下拖动,一直到文档结束位置

更多题库