一个平行四边形的面积是l80平方米，它的高是9米，这个平行四边形的底是_____

工程项目多方案比选不包括（）。

A.工艺方案比选

B.地域方案比选

C.规模方案比选

D.污染防治措施方案比选

豌豆的茎杆高度有高有矮，高茎与矮茎还是一对相对性状．遗传学家孟德尔选用豌豆作实验材料，进行植物杂交实验，探究遗传的规律．他其中的三组实验统计结果如下表：

亲代组合		子代的表现
①	高茎×高茎	高茎	5474	矮茎	1850
②	矮茎×矮茎	高茎	0	矮茎	1722
③	高茎×矮茎	高茎	2058	矮茎	2001

（1）由表中第______组可以判断出高茎是显性性状．

（2）若控制高茎的基因用A表示，控制矮茎的基因用a表示，则高茎与高茎的亲代组合中，不可能出现的是______．

A．AA×Aa      B．aa×aa     C．Aa×Aa       D．AA×AA

（3）从理论上推算第①组合中，子代高茎中基因组成AA与Aa的比例为______．

A．1：1       B．1：2      C．1：3      D．1：4

（4）若将高茎豌豆种植于土壤贫瘠的田地里，豌豆茎杆的高度就会有明显的下降，这种变异类型属于______变异．

一般情况下，曲柄销磨损比主轴颈快的原因是曲柄销的（）。

A．比压比主轴颈大

B．承压面比主轴颈大

C．受力比主轴颈小

D．三种情况都可能

班氏丝虫病淋巴阻塞性病变期包括

A．鞘膜积液

B．象皮肿与淋巴水肿

C．肝脾肿大

D．乳糜尿

E．腹腔积液

No doll outshines Barbie’s celebrity. If all the Barbies and her family members-Skipper, Francie and the rest-sold since 1959 were placed head to toe, they would circle the Earth more than seven times. And sales are sure to boom in 2009, when the fashion doll celebrates her 50th birthday on March 9th.

Barbie will star at an array of global events honouring her milestone, possibly including a glitzy affair at New York’s Fashion Week in February (most of the world’s top fashion designers, from Givenchy to Alexander McQueen, have designed haute couture for her). On her birthday, Mattel, the company that makes her, will launch a souvenir doll honouring the original Barbie in her black-and-white striped swimsuit and perfect ponytail. It will be available for purchase only that one day. Another Golden Anniversary doll targets collectors. Barbie fans have planned hundreds of events, including the National Barbie Doll Collectors Convention in Washington, DC, which is already sold out.

When Ruth Handler created Barbie in 1959, a post-war culture and economy thrived but girls still played with baby dolls. These toys limited the imagination; so Handler introduced Barbie the Teen-Age Fashion Model, named after her daughter, Barbara. Jackie Kennedy soon sashayed onto the world stage and Barbie already had a wardrobe fit for a first lady. Barbie bestowed on girls the opportunity to dream beyond suburbia, even if Ken at times tagged along.

Barbie entranced Europe in 1961 and now sells in 150 countries. Every second three Barbies are sold around the world. Her careers are myriad-model, astronaut, Olympic swimmer, palaeontologist and rock star, along with 100 others, including president. Like any political candidate, controversy hit Barbie in 1992 when Teen Talk Barbie said "Math class is tough" and girls’ education became a national issue. She has been banned (in Saudi Arabia), tortured (by pre-teen girls, according to researchers at the University of Bath’s School of Management) and fattened (in 1997).

Feminists continue to bash Barbie, claiming that her beauty and curves treat women as objects. But others see her as a pioneer trendsetter, crashing the glass ceiling long before Hillary Clinton cracked it.

High-tech entertainment now attracts girls and Barbie also faces fierce competition from various copycats including the edgier, but less glare, Bratz dolls. The Bratz suffered a setback in 2008．Mattel sued MGA Entertainment, Bratz’s producer, for copyright infringement. A judge awarded Mattel $100 million in damages.

Mattel has smartly ensured that Barbie products reflect current trends. Through two Barbie websites, girls can design clothes, network and play games. The pink Barbie brand is licensed for products from DVDs and MP3 players to bicycles and even 24-carat gold and crystal jewellery. Barbie collectors fuel an entire global industry on eBay and at conventions. To entice collectors, Mattel regularly releases pricey limited-edition dolls based on characters in films and popular culture.

Industry analysts believe Barbie will remain a bestselling and lasting icon regardless of competition. "Barbie’s been out in the world and had fun, and she’s ready for her second career," says Rachel Weingarten, a pop culture expert. "I don’t see her adopting five children from five different countries, but I could see Barbie with a conscience, activist Barbie. " At 50 Barbie will also be a marvel of plastic surgery and eternal youth. And she still knows how to party.

What can you tell from But others see her as a pioneer trendsetter, crashing the glass ceiling long before Hillary Clinton cracked it" （）

A. Barbie dolls are all contained in glass containers

B.Barbie as an icon shows the trend of breaking the gender prejudice

C. Barbie dolls factories have glass ceiling

D. Hillary Clinton used Barbie doll for her presidency campaign