当两人各在测力器两侧,同时用50N力对拉,测力计上的示值是()。 A.100N; B

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问题:

当两人各在测力器两侧,同时用50N力对拉,测力计上的示值是()。

A.100N;

B.50N;

C.25N;

D.0N;

考点:水轮发电机机械检修工水轮发电机机械检修工(中级)水轮发电机机械检修工(中级)题库
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By the time Rihanna was seventeen ,she had released (发行) her first album and had an international hit with her first single (单曲) Pon de Replay.

Rihanna was born in Saint Michael , Barbados in 1988 . She grew up there with her two younger brothers . As a child , she loved singing . She formed her first group with friends from secondary school when she was just fifteen . In 2004 friends introduced the group to American record producer Evan Rogers ,who was on holiday in Barbados . Rogers thought Rihanna could be a star in America,so she moved there aged sixteen to take up music after she finished school. Rihhanna  lived with Rogers and his wife . Then she worked for Def Jam Recordings and started working on her first album , Music of the Sun .It came out at in 2005 and got into the top ten . Over 69,000 copies of the album were sold in the first week alone . It went on to sell over two million copies worldwide and Rihanna quickly became a big star . Her second album , A Girl Like Me ,came out a year later and included the song SOS , which was her first number one hit in America. In 2007 Rihanna brought out her third album , Good Girl Gone Bad ,which had more dance music than the first two albums.

Rihanna sold more than fifteen million album and forty - five million singles worldwide between 2005 and 2010 ,the most of any artist at the same time . However ,she manages to find time for her charity work ,too . She has performed in several concerts to raise money for charity and in 2006 she created her Believe Foundation to help sick children . She also took part in Gucci’s activities to raise money for children in Africa.

小题1:What had Rihanna released before she was seventeen ?

A.An album but no singles.

B.A single but not an album.

C.An album and at least one single.

D.Two album and a single Pon de Replay.小题2:Why did Rihanna move to America ?

A.To try to become a famous singer.

B.To form her first music group.

C.To meet the record producer Evan Rogers.

D.To record her album ,A Girl Like Me ,with the help of Rogers.小题3:Which is true about Rihanna’s first album ?

A.It included her first number one hit in the US.

B.It sold69,000 copies in total.

C.It made Rihanna a star.

D.It came out before she finished school.小题4:It can be learnt from the text that Rihanna ______.

A.Wants to start a charity to help sick children

B.Has helped to raise money for African children

C.Has organized some concerts to raise money for charity

D.Is producing another album for her Believe Foundation

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下列选项中不是政府制定的货币政策的是( )。

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B.公开市场操作

C.提高再贴现率

D.增发长期国债

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在转炉吹炼中,造成炉渣“返干”现象的主要原因是()。

A、渣料量大

B、供氧量大于碳氧反应所耗氧量

C、供氧量小于碳氧反应所耗氧量

D、CaF2加入量偏少

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2016年中央“一号文件”《关于落实发展新理念加快农业现代化实现全面小康目标的若干意见》受权发布。阅读材料,回答同题。

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材料三:2016年的中央“一号文件”指出:加强和改善党对“三农”工作领导,加快农业现代化和农民奔小康,必须坚持党总揽全局、协调各方的领导核心作用,改进农村工作体制机制和方式方法,不断强化政治和组织保障。充分发挥农村基层党组织的战斗堡垒作用和党员的先锋模范作用,不断夯实党在农村基层执政的组织基础。依法开展村民自治实践,探索村党组织领导的村民自治有效实现形式。巩固和拓展党的群众路线教育实践活动争“三严三实”专题教育成果。加强农村法治建设,完善农村产权保护、农业市场规范运行、农业支持保护、农业资源环境等方面的法律法规。

结合材料二和所学的政治生活知识,分析党如何加强对“三农”工作领导。

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实验动物遗传育种学是利用遗传调控原理,采用传统和现代的生物技术手段,研究和控制动物的遗传特性,培育新的和规范的动物品系和各类()的科学。

A.杂交动物

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