问题
单项选择题 A1/A2型题
右心衰竭时呼吸困难的机制，主要为（）
A.迷走神经兴奋性增高
B.心肌供血减少
C.右心房及上腔静脉压力升高
D.下肢静脉回流增多
E.肺淤血
答案
参考答案：C
搜题请搜索小程序“爱下问搜题”
右心衰竭时呼吸困难的机制，主要为（）
A.迷走神经兴奋性增高
B.心肌供血减少
C.右心房及上腔静脉压力升高
D.下肢静脉回流增多
E.肺淤血
参考答案：C
阅读下面短文，从短文后所给各题的四个选项(A、B、C和D)中，选出可以填入 空白处的最佳选项，并在答题卡上将该项涂黑。 A wealthy man and his son loved to collect rare works of art. They had a large , from Picasso to Van Gogh. They would often sit together and the paintings of great artists. When the Vietnam conflict , the son went to war. he died in battle while rescuing another soldier. The father was in deep . A month later, a young man came with a large in his hands. He said, “Sir, I am the soldier for whom your son his life. He often talked about your love for . So please accept it as a gift.” The father opened the package and saw a of his son. The father was so drawn to the picture that his eyes welled up with tears. A few months later, the wealthy man died. There was to be a great auction (拍卖) of his . Many people gathered, over having an opportunity to one painting. The auctioneer said, “We will start the bidding (竞拍) with this picture of the son. Who will bid for it?” There was . Then a voice shouted, “We want to see the famous paintings. Just it.” “The son! Who’ll take the son?” the auctioneer continued. Finally, a came from the very back. It was the gardener of the old man. “I’m poor and can only $10 for that.” The auctioneer asked the crowd to bid more. , they still kept silent. So he pounded the gavel (小锤). “SOLD for $10!” A man shouted, “Go on with the collection!” The auctioneer said, “I’m sorry, the auction is . According to will, only the picture of the son would be auctioned. Whoever bought that picture would be with all of the possessions, including the paintings.”
|