(6分)关于分子动理论和热力学定律,下列说法正确的是_________。 A.布

题型:选择题

问题:

(6分)关于分子动理论和热力学定律,下列说法正确的是_________。

A.布朗运动是液体分子的无规则运动

B.分子间引力总是随着分子间的距离减小而减小

C.热量能够自发地从高温物体传导到低温物体,但不能自发地从低温物体传导到高温物体

D.功转变为热的实际宏观过程一定是可逆过程。

考点:分子动理论
题型:选择题

若某整数的16位补码为FFFF(H表示十六进制),则该数的十进制值为()

A.0 

B.-1 

C.2-1 

D.-2

题型:选择题

中央八项规定实施一年来,从中央到地方一系列相关文件陆续出台:禁止公款吃喝送礼、禁止各级党政机关兴建楼堂馆所、制止豪华铺张提倡节俭办晚会…… 这些规定

A.表明了党加强廉政建设,狠刹浪费之风的决心

B.表明党坚持依宪治国

C.能够彻底消除违纪违法行为

D.是坚持可持续发展的基本国策

题型:选择题

Anna lived on the side of a valley (山谷). One winter, there was a very big flood, and a lot of houses down below Anna’s house were washed away. Anna’s house was high enough to escape the flood, so when the water had disappeared and the other houses were standing there with no roofs and walls and all covered with mud, her house was still quite all right. That year Anna’s was very lucky.

Her house was quite small and there were only two small bedrooms, her husband was dead when the children were very young, and she had four children, but Anna took in one of the families that had lost everything in the flood and she shared her home with them until it was possible for them to rebuild their house.

Anna’s friends were very puzzled (困惑) when they saw Anna do this. They could not understand why Anna wanted to give herself so much more work and trouble when she had already quite a lot of children to support. Life would be even harder when another family joined them.

"Well," Anna explained to her friends, "at the end of the First World War, a woman in the town where I then lived in Germany found herself very poor, because her husband had been killed in the war and she had a lot of children, as I have now. "

"The day before Christmas, this woman said to her children, ’We won’t have much for Christmas this year, so I am going to get only one gift for all of us and I am sure we will all be glad to have it. Now I’ll go and get it.’ She came back with a little girl who was even poorer than they, and who had no parents. ’Here is our gift,’ she said to her children. "

"The children were very excited and happy to get such a gift. They welcomed the little girl, and she grew up as their sister, I was just that Christmas gift. \

Who was once given as a Christmas gift to a poor family()

题型:选择题

下列选项属于《十八届中央政治局关于改进工作作风、密切联系群众的八项规定》中精简会议活动方面内容的是()

A.严格控制以中央名义召开的全国性会议和举行的重大活动

B.不开泛泛部署工作和提要求的会

C.开短会、讲短话

D.力戒空话、套话

题型:选择题

在内场道路通行的车辆、人员一般遵循左侧通行的原则,按规定路线通行,避让航航空器,确保安全。

更多题库