热量从高温部分自动流向低温部分,直至整个物体的各部分温度相等时的传热方式称为()。A

题型:单项选择题

问题:

热量从高温部分自动流向低温部分,直至整个物体的各部分温度相等时的传热方式称为()。

A.热辐射

B.热对流

C.热传导

D.热传导和热对流

考点:合成氨装置操作工合成氨装置操作初级工合成氨装置操作初级工题库
题型:单项选择题

One afternoon Mrs.Green’s husband wanted to catch the 3:30 flight to London to have an important meeting. She was very surprised when he telephoned her at 5 o’clock and said that he was still at the airport.

“What happened to you?”asked Mrs Green.

“Well,” said Mr. Green, “Everything was going fine. I got my ticket, checked my luggage and waited in line at the gate. I walked across the runway to the airplane and I saw my friend Jack Scott, who was an airplane engineer. I shouted to him and a policeman caught me.”

“Why did he catch you?”

“I don’t know,”said Mr.Green, “As soon as he heard my shout, he ran towards me and caught me.”

“What did you shout to your friend?”

“All I said was ‘Hi, Jack’. You know that’s the usual way we say hello to our friends.”

“But you don’t know the sentence ‘Hi,Jack’ also means to take control of a plane by force.”

小题1:How did Mr.Green want to go to London?

A.By train

B.By bus

C.By airplane

D.By ship小题2:Why was Mrs. Green surprised? Because her husband_______

A.didn’t arrive the airport in time

B.was still at the airport at 5 o’clock

C.didn’t want to go to London

D.was in London at 5 o’clock小题3:When did Mr.Green get to the airport that afternoon?_______

A.Before 3:30

B.After 3:30

C.At 3:30

D.At about 5:00小题4:What was Jack Scott in the passage? He was _________

A.a pilot

B.a policeman at the airport

C.an engineer

D.an actor

题型:单项选择题

在Oracle产品中,用公用网关接口实现的过程化网关是()。

A.Oracle WebListener

B.Oracle WebAgent

C.Oracle WebServer

D.Oracle DBA

题型:单项选择题

电力推进船舶的螺旋桨是由()直接驱动的。

A、柴油机

B、发电机

C、电动机

D、汽轮机

题型:单项选择题

纳税人是为从事货物的生产、批发、零售的纳税人,要根据其年销售货物销售额是否超过年货物销售额(含加工、修了修配收入)非应税劳务营业额合计数的()来判断。

A.25%

B.40%

C.50%

D.60%

题型:单项选择题

内存储器存储信息时的特点是()

A、存储的信息永不丢失,但存储容量相对较小

B、存储信息的速度极快,但存储容量相对较小

C、关机后存储的信息将完全丢失,但存储信息的速度不如软盘

D、存储的容量很大,没有任何限制

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