热源直接向空间发散热的方式是() A.热传导 B.热对流 C.热辐射 D.热平衡 E

题型:单项选择题 B型题

问题:

热源直接向空间发散热的方式是()

A.热传导

B.热对流

C.热辐射

D.热平衡

E.热放散

考点:康复医学主治医师物理学基础物理学基础题库
题型:单项选择题 B型题

一堆煤,计划每天烧0.5吨,可以烧40天,如果每天烧0.4吨,可以烧多少天?(用比例解)

题型:单项选择题 B型题

纳税抵押的标的物包括()。

A.土地所有权

B.依法被查封、扣押、监管的财产

C.抵押人所有的房屋和其他地上定着物

D.学校的教育设施

题型:单项选择题 B型题

留忖小学探险队一共有80人,为联络方便,设计了这样一种联络方式:一旦有事,先由领队刘磊老师通知2名路队长,这2名路队长同时通知2名未被通知的同学,以此类推…假定同时通知2人需要1分钟,5分钟能通知到全部同学吗?

题型:单项选择题 B型题

Bertie knew there was something in the wind.His mother had been sad in recent days, not sick, just strangely sad. The lion had just lain down beside him, his head warm on Bertie’s feet when Father cleared his throat and began, “You’ll soon be eight, Bertie. A boy needs a proper education. We’ve found the right place for you, a school near Salisbury in England.”

His heart filled with a terrible fear, all Bertie could think of was his white lion. “But the lion,” he cried, “What about the lion?”

“I’m afraid there’s something else I have to tell you,” his father said. Looking across at Bertie’s mother, he took a deep breath. Then he told Bertie he had met a circus owner from France, who was over in Africa looking for lions to buy. He would come to their farm in a few days.

“No! You can’t send him to a circus!” said Bertie. “People will come to see him. He’ll be shut up behind bars. I promised him he never would be. And they will laugh at him. He’d rather die. Any animal would!” But as he looked across the table at them, he knew their minds were quite made up.

Bertie felt completely betrayed. He waited until he heard his father’s deep breathing next door. With his white lion at his heels, he slipped downstairs, took down his father’s hunting rifle from the rack and stepped out into the night. He ran and ran till his legs could run no more. As the sun came up over the grassland, he climbed to the top of a hill and sat down, his arms round the lion’s neck. The time had come.

“Be wild now,” he whispered. “You’ve got to be wild. Don’t ever come home. All my life I’ll think of you. I promise I will.” He buried his head in the lion’s neck. Then, Bertie clambered down the hill and walked away.

When he looked back, the lion was still sitting there watching him; but then he stood up, yawned, stretched, and sprang down after him. Bertie shouted at him, but he kept coming. He threw sticks. He threw stones. Nothing worked.

There was only one thing left to do. With tears filling his eyes and his mouth, he lifted the rifle to his shoulder and fired over the lion’s head.

小题1:Bertie’s mother was sad probably because she ______.

A.had been seriously ill recently

B.had decided to send Bertie to school

C.knew selling the lion would upset Bertie

D.knew Bertie would hate to go to England小题2:In the last paragraph, the boy lifted the rifle to ______.

A.kill the lion out of anger

B.show his anger towards his father

C.protect himself from the lion

D.threaten the lion back to the wild小题3:The passage intends to show that ______.

A.animal-hunting is popular in Africa

B.parents are sometimes cruel to their children

C.people and animals can be faithful to each other

D.animals usually lead a miserable life in circuses

题型:单项选择题 B型题

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