单项选择题

对诊断血胸最有价值的是

A.胸痛、呼吸短促
B.血压下降、脉搏细弱
C.气管移向健侧
D.胸穿抽出血液
E.患侧呼吸音消失

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单项选择题

慢性肺源性心脏病患者形成肺动脉高压的最重要因素是

A.缺氧
B.二氧化碳潴留
C.呼吸性酸中毒
D.慢性支气管炎反复发作
E.肺小动脉炎

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SECTION C NEWS BROADCASTDirections: In this section you will hear everything ONCE ONLY. Listen carefully and then answer the questions that follow. At the end of each news item, you will be given 10 seconds to answer the questions.听力原文： President Robert Mugabe, who has ruled Zimbabwe with an iron fist for nearly three decades, faces his toughest challenge yet in this weekend's general elections. Voters go to the polls Saturday in simultaneous presidential, parliamentary, senate and council elections. Mugabe faces three opposition candidates, two of whom have a good chance of winning. Zimbabweans are the poorest they have ever been since the nation became a democracy.Unemployment is estimated at around 80 percent, inflation is more than 100,000 percent, and hundreds of thousands are fleeing the country to earn more elsewhere than they would back homE.Mugabe has been in office since the country, then called Rhodesia, gained independence from Britain in 1980. He was once respected as a liberation hero, but observers now criticize him for repressive tactics and corruption, and blame him for the country's dire economic statE.In what critics labeled a vote-buying exercise, Mugabe recently increased the salaries of the police, army and teachers and also handed out machinery to black farmers. Zimbabwean officials deny the moves had anything to do with the election.Which of the following is TRUE of Zimbabwe?A.It became independent from US in 1980.B.It suffers from inflation and unemployment.C.It has many refugees fleeing from other countries.D.It has been ruled by Mugabe for two decades.

A.听力原文：
B.Unemployment
C.
Which
D.It
E.
B.It
F.
C.It
G.
D.It

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