肺泡回缩力主要来自（　　）

(1)【◆题库问题◆】：[单选] 肺泡回缩力主要来自（　　）
A．肺弹性纤维与肺泡表面张力
B．肺泡表面液体分子层
C．肺泡表面活性物质与肺弹性纤维
D．肺弹性纤维
E．肺泡表面活性物质

【◆参考答案◆】：B

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(2)【◆题库问题◆】：[单选] 肺泡回缩力主要来自（　　）
A．肺弹性纤维与肺泡表面张力
B．肺泡表面液体分子层
C．肺泡表面活性物质与肺弹性纤维
D．肺弹性纤维
E．肺泡表面活性物质

【◆参考答案◆】：B

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(3)【◆题库问题◆】：[单选] I always regrettednot_________ harder when l was young．
A．studyin9
B．having studied
C．tostudy
D．D to have studied

【◆参考答案◆】：B

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(4)【◆题库问题◆】：[单选,材料题] What prompted Sequoyah to develop hisalphabet?Sequoyahwas a young Cherokee Indian．son of a white trader and an Indian Squaw(北美印第安女人)．At an early age，hebecame fascinated by“tile talking leaf”，an expressionthathe used to describe the white man’s written records．Although many believe this"talking leaf”to be a gift from tileGreat Spirit，Sequoyah refused to accept that theory．Like other Indians oftile period，he wasilliterate，but his determination to remedy tilesituation led to the inventionof a unique 86 character alphabet based on thesound patterns that he hearD． 　　Hisfamily and friends thought him mad，but while recuperating(恢复)from a huntingaccident．he diligently andindependently set out to create a form of communication for his ownpeople aswell as for other Indians．In l821，after twelve years of work，he hadsuccessfully de。veloped a written language that wouldenable thousands of Indians to read and writE． 　　Sequoyah’s desire to preserve wordsand events for later generation has caused him to be remembered among theimportant inventors．The giant redwood treesof-California，called“se-quoias(红杉)”in his honor，will further imprint his namein history． 根据以上内容，回答下面的题目。What is the mostimportant reason that Sequoyah wiU be remeIll]bered?
A．People were writing thingsabout him that he couldn’t reaD．
B．He wanted to become famous．
C．After his hunting accident，he needed something to keep him busy．
D．Future generations．

【◆参考答案◆】：D

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(5)【◆题库问题◆】：[单选] Although he had stayed in that business for two years，_______he still wanted to switch to a different career．
A．and
B．but
C．yet
D．So

【◆参考答案◆】：C

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(6)【◆题库问题◆】：[单选] ________at his modelplane over the weekend，he didn’t complete it．
A．As he workedhard
B．Hard as he worked
C．How heworked hard
D．How hard he worked

【◆参考答案◆】：B

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(7)【◆题库问题◆】：[单选,材料题] 胸骨左缘第3～4肋问搏动（　　）根据材料回答下面的题目下列情况可出现哪些阳性体征?游离腹水1000mL以上时（　　）
A．正常青年人
B．右心室肥大
C．腹主动脉瘤
D．左心室肥大
E．升主动脉瘤

【◆参考答案◆】：B

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(8)【◆题库问题◆】：[单选] 心率加快时，心动周期就会缩短，其中缩短最明显的是（　　）
A．心房收缩期
B．心房舒张期
C．心室舒张期
D．心室收缩期
E．心房舒张期和心室舒张期

【◆参考答案◆】：C

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(9)【◆题库问题◆】：[单选]
A．bufret
B．indicate
C．market
D．product

【◆参考答案◆】：A

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(10)【◆题库问题◆】：[单选] 被誉为“唐宋八大家”之首的是
A．欧阳修
B．苏轼
C．韩愈
D．王安石

【◆参考答案◆】：C