俄罗斯面积居世界第一，它的面积为多少万平方千米？[] A、1000 B、1700

患者，男性，27岁，因活动后心悸、气短6个月就诊。查体：生命体征平稳，神志清楚，口唇无紫绀，听诊双肺呼吸音粗，心律不齐，心尖可闻及舒张期杂音，腹平软，肝脾肋下未触及，双下肢无水肿。心电图：心房颤动、右室肥大，胸部X线平片：双肺瘀血，左房、右房、右室增大。血常规及生化检查无异常。

（提示术中见左房明显增大，未见肿瘤性病变和其他心脏畸形，二尖瓣上方3mm处有一环状嵴样增厚。）该患者可确诊为（）

A.三房心

B.左房黏液瘤

C.先天性二尖瓣瓣上狭窄环

D.缩窄性心包炎

E.风湿性二尖瓣狭窄

F.二尖瓣关闭不全

下列各句中，没有语病的一句是[ ]

A．能否抓住机遇、加快发展，在未来的发展中赢得更多的主动，在复杂多变的国际格局中始终立于不败之地，这是我们党面临的国际局势变动的新考验。

B．在“5.12”地震抢险救灾中，可敬的军人个个奋不顾身，冲锋在前。大家虽然有点累，但保护了人民生命财产免遭损失，心里有说不出的高兴。

C．排球是一个集体项目，与其他运动是不一样的，教练员需要不断摸索，中国队现在的当务之急就是找到理想的配合。

D．国家广电总局和信息产业部联合发布了《互联网视听节目服务管理规定》，这一规定旨在加强行业准入门槛，将网上五花八门的视频节目纳入更加严格的监管。

甲、乙、丙三人协商达成一书面合伙协议，约定各自出资1万元，成立一家小百货商店，并按出资比例平均分配盈余，分担亏损。该商店起字号为"兴旺商店"。2000年1月经核准注册，取得营业执照。到2000年6月为止，因经营管理不善，该商店负债累累，欠百货批发公司4万元钱未偿还。此时，甲便提出退伙，乙、丙二人不同意，甲便提走其出资1万元，径行退出。兴旺商店由乙、丙二人继续经营。8月，兴旺商店欲购进一批新式洗涤用品，但货款不足，乙、丙便向丁提出借款2万元，丁同意借款，但提出一条件，即若这批洗涤用品赚钱后，乙、丙二人除还本付息外，还须将所得利润分与其一份；若不赚钱，乙、丙二人须届时还本付息。洗涤用品进货后，因质量低劣、销路不畅，造成亏损5000元。2001年1月，百货批发公司因向兴旺商店索债不成．便诉至法院；同时，丁也因乙、丙二人不能还本付息而向法院起诉，法院合并审理。被告乙认为欠百货批发公司的钱是三人所欠，按合伙协议，他对外只承担1/3的债务；被告甲认为，自己已于 2000年6月退伙，故所欠全部债务应由乙、丙二人承担；被告丙认为，甲不经乙、丙二人同意，擅自退伙无效，故经营洗涤用品的亏损，甲也应承担；而法院在审理此案中有一种意见认为原告丁名为借款给乙、丙，实际上他约定参与洗涤用品的盈余分配，故丁与乙、丙之间应为一种合伙关系，所以对这批货物的亏损，丁也应承担责任。

甲的退伙是否有效

Texans have bursting pride and love attention. They also have a thick streak of shortsighted greed and, even by American standards, a busted disposition to violence. When they hear this sort of criticism they usually ascribe it to the ignorance and jealousy of stuffy Yankees who have not spent enough time in the state to understand it. For such avowedly robust people they are surprisingly sensitive. They hated Edna Ferber’’s novel Giant, which scourged Texan vulgarity, racism and the mores of millionaires, but they bought it in great quantities and packed cinemas to see the film. They would rather be talked about than not, and if you do not talk about them they do it for you.In claiming special qualities for themselves, Texans have had to become reconciled to the fact that a large number of them are not native. In the last century "Gone to Texas" was a commonplace graffito daubed on barns in other states, and in recent years "Gone to Texas" has, figuratively, been written on the front doors of millions of Americans and also Mexicans. In the early 1980s newcomers accounted for nearly two-thirds of the state’’s population increase. But Texans do not believe they are being diluted. They maintain that Texanhood, or Texianism, is a matter of attitude and that Texanic qualities exist in abundance in many Americans, regardless of their birthplace: it is when these people are planted in Texas, and nourished by its atmosphere, that they flower like true Texans. A man may not be born in Texas, which is unfortunate; but he can be born to be Texan.Many Alaskans are urban, young and raising families, here for a while, and trying to make money before moving to somewhere warmer. But many are staying. While most remain in Anchorage and other centers, some set out to build a cabin in the wilderness and live by hunting, trapping and fishing, learning how to skin a muskrat and moose, how to survive terrible weather, how to be truly in tune with the land, taking pleasure in great silence and unpeopled immensity. To settle the frontier the state has a homesteading program, based on the federal Homestead Act of 1864, which was a key event in the opening up of the American west. Hundreds of Alaskans are awarded parcels of wilderness land in an annual lottery and undertake to invest sweat equity, to build a home within three years and clear and cultivate the land within five. Alaskans love reading about Alaska, and two of the most popular books are a manual on log cabin building and a collection of tales about grizzly bears, of which Alaska is a phold. Log cabin life is for the stout-hearted few with the springs of adventure p in them, and these wilderness Alaskans are remarkable. Some are refugees of one kind or another. Several hundred are Vietnam veterans, tortured by their experiences of war and unable to fit into normal urban life, seeking solace in the wilds.

According to the author, Alaskans are characterized by their distinctive and unique way of life that________.

A．is embraced by both a p desire to make money and special qualities for enjoying peace

B．takes hunting, fishing and learning how to skin wild animals as their major activities

C．is made up of both the enjoyment of staying indoors and the exploration of and doing the wilderness

D．consists of both the love of themselves and the lust for wealth