问题 单项选择题 A1/A2型题

下列哪项不是影响氧运输功能的因素()

A.心血管结构的完整性

B.心血管结构的柔顺性/弹性

C.心脏收缩、心脏舒张功能

D.外周血管阻力

E.性别

答案

参考答案:E

解析:氧运输功能是心血管系统和呼吸系统共同的核心功能。血管的主要功能是运输,血管功能取决于循环驱动力、心血管结构的完整性和柔顺性/弹性等。血管功能障碍导致物质运输困难,产生缺氧缺血症状。心脏的主要功能是产生循环系统内的血液驱动力,即心脏射血能力。影响射血能力的主要因素包括:心脏收缩功能、心脏舒张功能和外周血管阻力。心脏功能减退将导致循环功能障碍。

完形填空
A few months earlier I had been painting two portraits for each of my parents.I'd planned to give them the portraits as Christmas gifts.This would be a   36   for everyone,as I had not studied  37  .
While painting one day, I was surprised by a knock on the door. Quickly having put all my  38 materials out of sight, I opened the   39  . To my astonishment, my father came in .
Immediately I wanted to show him the paintings, but I was   40  to destroy his Christmas surprise. Yet something  41  me to share the gifts with him. After making him promise to keep it secret, I   42   he keep his eyes closed until I had the portraits set on easels(画架). “Okay, Daddy. Now you can   43  !”
He appeared dazed at first. Finally , he said, “I don’t believe it. The eyes are so  44 that they follow you everywhere—and look how   45   your mother is. Will you let me have them  46 ?”
Excited with his response, I happily volunteered to   47  them to the frame shop the next day. Several weeks passed. Then one night the   48   rang—my father had a stroke(中风). He died the next day, and it seemed all   49    escaped from the life of my mother and me .
I finally remembered to  50   about the framed portraits. I was surprised when the shopkeeper told me my father had visited the shop,   51 for the framing and had them gift-wrapped.
 52 we had lost our loved people, everyone gathered on Christmas Day making an effort to be   53  . As I looked into my mother’s sad eyes and unsmiling face, I decided to give her Daddy’s and my   54  . After she saw it, with a wide smile, she quickly said, “I knew Daddy would be with us on Christmas Day!”
I glanced at the gift card written in my father’s   55 . “ Mother—Our daughter reminded me why I am so blessed. I’ll be always looking at you.—Daddy.”
小题1:
A.comfortB.successC.chance D.surprise
小题2:
A.artB.musicC.dance D.literature
小题3:
A.1isteningB.painting C.writing D.reading
小题4:
A.windowB.drawerC.door D.bag
小题5:
A.reluctantB.sorryC.contentD.eager
小题6:
A.forbadeB.forcedC.advised D.encouraged
小题7:
A.suggestedB.insisted C.required D.ordered
小题8:
A.lookB.tasteC.sing D.go
小题9:
A.bigB.brightC.real D.clear
小题10:
A.honestB.oldC.shy D.beautiful
小题11:
A.hungB.framedC.signed D.sold
小题12:
A.driveB.seeC.dropD.leave
小题13:
A.bellB.clockC.phone D.whistle
小题14:
A.anxietyB.painC.trouble D.joy
小题15:
A.worryB.callC.careD.talk
小题16:
A.paidB.waitedC.stayed D.prepared
小题17:
A.In caseB.As soon asC.Even thoughD.Now that
小题18:
A.sadB.cheerfulC.quiet D.calm
小题19:
A.heartB.secretC.advice D.gift
小题20:
A.wordsB.sayingC.handwriting D.1etters
选择题