问题 单项选择题 A1/A2型题

二尖瓣狭窄血流动力学障碍造成的心脏体征是()

A.右房扩大

B.左房、左室扩大

C.左室扩大

D.左房扩大,右室肥厚

E.全心扩大

答案

参考答案:D

解析:二尖瓣狭窄时,舒张期血流由左心房流入左心室时受限,使左心房压力异常升高,导致左房代偿性扩大。由于左房压力增高,进而导致肺静脉和肺毛细血管压力的升高,肺循环血容量长期超负荷,可导致肺动脉压力升高,肺小动脉痉挛硬化,右室阻力负荷增高,引起右心室肥厚和扩张。

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Whitney Houston, who died on February 11, 2012 in Beverly Hills, California, is being remembered across the globe as a trailblazer(开拓者). Among all of Houston’s outstanding achievements, including a total of more than 400 career a wards , her most significant achievement was her record-setting string of seven Number One singles on the Billboard Hot 100 chart . It broke the previous record of six set by The Bee Gees and The Beatles. The string began on October 26 , 1985 with her Grammy-winning hit “Saving All My Love For You,” and ended on April 23, 1988 with her R&B ballad “Where Do Broken Hearts Go.” It was the fourth single from her album“Whitney”to go to Number One, also a record for a female artist. She sold more than 170 million albums worldwide and co-produced and recorded songs for one of the best-selling soundtracks(声带)of all time, The Bodyguard.

Whitney Houston was born the daughter of famed gospel(福音)singer Cissy Houston in Newak , New Jersey. Dionne Warwick was her cousin and Aretha Franklin her godmother. She began as a gospel singer and pianist in her mother’s church and sometimes performed alongside her in nightclubs. At age 15 , Whitney sang backup on Chaka Khan’s “I’m Every Woman,” a tune she later performed on The Bodyguard soundtrack.

Whitney signed with Arista in 1983 and released her self-titied debut album two years later. The New York Times called her first effort, “an impressive, musically conservative showcase(展示)for an exceptional vocal talent(声乐天才).” She continued to achieve similar praise for subsequent albums, while her fast-growing fan base put her into the world-class entertainer. In 1998, she released her most musically-diverse album to date, “My Love Is Your Love.” The title track became her third best-selling single ever.

The past 10 years were filled with highs and lows. While Whitney’s contract at Arista Records was renewed for $100 million, album sales began to slide. Her 14-year marriage to singer Bobby Brown ended in 2007 , she canceled concerts and interviews , and accusation arose of drug abuse. Her final album “I Look To you,” sold more than two million copies and reached the Number One spot in 2009.

小题1:What’s Whitney Houston’s most outstanding achievements?

A.Selling more than 170 million albums worldwide.

B.Her 400 career awards.

C.Her vocal talent.

D.Her record-setting string of seven Number One singles.小题2:According to the text, Houston      .

A.was born in a gospel singer family

B.released her famous album at the age of 15

C.sold the most of the albums worldwide

D.Whitney first signed with Arista in 1985小题3:What was Houston accused of ?

A.Her divorce with Bobby Brown.

B.Her conflict with her former husband.

C.The canceled concerts and interviews.

D.Drug abuse.小题4:When did Whitney release her first self-titled album?

A.In 1983.

B.In 1985.

C.In 1989.

D.In 1987.小题5:What is the main idea of the first paragraph?

A.Whitney’s success.

B.Whitney’s achievements.

C.Whitney’s best singles.

D.Whitney’s music talents.

单项选择题