"席梦思"是源于地名。

阅读图文材料，结合所学知识，回答问题。

（1）英国科学家李约瑟说，中国海军在1100~1450年间，包括郑和的船队，无疑是世界上最强大的。图一所示郑和下西洋最远到达______沿岸和______东海岸。     

（2）清朝北洋舰队始建于________运动时期。图二是在此期间中国工匠独立制成的铁甲舰“平远号”，它曾在甲午海战中一炮击中日本旗舰“松岛号”，震惊敌舰。然而，北洋舰队最终全军覆没于日本侵略者的炮火中。（3）为庆祝中国人民解放军海军成立60周年，2009年4月23日举行了我国历史上最大规模的海军阅兵，有14个国家的海军舰艇与中国海军一起接受了胡 * * 等国家领导人的检阅。请举出中国海军为维护世界和平做出贡献的一个具体事例 ________________________________________________________ ___________                                                                                                                                                                （4）综合上述图文材料和所学知识，分析不同时期海军力量变化的原因。                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                

利润中主业绩考核的重点是（）。

A.利润

B.剩余收益

C.贡献边际

D.投资报酬率

E.毛利

在热电偶的安装中，热电偶的热端接地与不接地有何区别？

As a solo artist, Brightman has sold 26 million albums and two million DVDs in 34 countries. Her musical styles put opera, pop and jazz together. She is popular in the States but not here(Britain) - the image of her and her second husband, Andrew Lloyd Webber (he is much older, she is his muse) seems for ever frozen.

The 47-year-old singer talks about the new album Symphony that came out of a "very dark time", including her decision to give up trying to have children. "People have suggested I could adopt," Brightman says. "But work is central to my life now. And so I am going to put it to one side. After a while not having children becomes the norm and perhaps that might sound alarming, to parents especially, but I have never known anything different. I’m not hurt by not having children. My life and career are incredibly rich. "

Talking about growing up in a large family in Berkhamsted—her father is a property developer who later committed suicide, she says: "I was gifted as a child, and very musical. I seemed to be good at anything to do with the arts. At 5 I understood the music I was dancing to and had an eye for costume. " She first appeared in a West End musical at 11 and hated boarding school.

Brightman led the saucy dance troupe(辣妹三人舞) Hot Gossip and had her first hit with I Lost My Heart to a Starship Trooper in 1978. At 18 she married a music manager called Andrew Graham Stewart. "I was probably in love but I can’t remember. Girls change such a lot between 18 and 22. It didn’t really work out. " In 1981 she was spotted by Lloyd Webber. She became his leading lady in Song and Dance, Requiem and Phantom of the Opera. They married in 1984.

Brightman says she felt hostility "from the beginning. I haven’t tried to understand it. I’ve done very well everywhere else, especially the US, where I now live, I just accept it for what it is. The more you are away from Britain, the more you appreciate it. But I don’t miss it, although I miss my family. Our profession can be uncomfortable but I enjoy what I do. I get on with it. \

Brightman decided to give up having children because ().

A．she could adopt one

B．her life and career were unbelievably rich without children

C．she felt it normal not to have children

D．she was too busy

“工程物资”账户核算企业用于在建工程的各种材料物资的实际成本，不包括为工程而准备的待安装设备。