除哪项外是决定心肌需氧量的因素()A.心率 B.心室容积 C.血压 D.心肌收缩力

题型:单项选择题

问题:

除哪项外是决定心肌需氧量的因素()

A.心率

B.心室容积

C.血压

D.心肌收缩力

E.心排量

考点:麻醉(医学高级)心脏病人非心脏手术的麻醉心脏病人非心脏手术的麻醉题库
题型:单项选择题

女性24岁,眼睑下垂、四肢乏力一年余。1天前在感冒后出现吞咽费力,呼吸困难。体检:口唇轻度发绀,双眼睑下垂,眼球各向运动均受限,四肢肌力Ⅱ°~Ⅲ°级,呼吸活动度明显减弱,新斯的明试验(+),应诊断为()。

A.格林-巴利综合征

B.周期性瘫痪

C.重症肌无力

D.急性脊髓炎

E.进行性肌营养不良

题型:单项选择题

In a growing number of English classes, teachers are leaving the classic novels on the shelf and letting students select the books they read. Supporters say that the new approach, called reader’s workshop, helps develop a love for reading in students who are bored by classic literature. They argue that the best way to motivate students to read more is to offer them more choices.

Not all educators are on the same page, however. They worry that students who choose trendy, less challenging titles over the classics won’t be exposed to the great writing and key themes of important works of literature.Student reporters Donald and Sarah express their ideas about this new approach.

Donald thinks that we should turn the page. Students should be allowed to select the books they read in English class. He says he and his classmates are allowed to pick their own books in class. That makes them more focused, and they look forward to class time. Tristin, a classmate of his at Clinton Middle School agrees. “I’m reading books that I want to read, which makes class more fun and interesting,” he says. Offering students a choice may also improve test scores. Studies by Professor John Guthrie of the University of Maryland found that students in grades 4 through 6 who had some choices in the books they read showed improved reading comprehension skills during testing. Giving students the chance to decide what they read helps build a lifelong love for reading. Isn’t that what we want for our students?

Sarah holds a different view. She thinks teachers know more about books than students do. When an English teacher assigns a book, he or she keeps in mind the reading level of most students in the class. Students who choose their own books might be cheating themselves by picking books that are not up to their reading level or that are too difficult. Furthermore, a whole class can discuss a book it reads together. That makes it easier for some kids to understand what they are reading. “The students wouldn’t be able to hold a meaningful conversation if they were all reading different books,” says Kristin, an English teacher at Fleetwood Area Middle School. “If they read the same book, their conversations would be more in-depth.”

小题1:What’s the meaning of the underlined sentence “Not all educators are on the same page”?

A.Educators have different opinions.

B.Educators didn’t appear at the same time.

C.Educators wrote in different pages.

D.Educators didn’t agree with the author.小题2:Donald thinks that the new approach could __________.

A.helped students be more focused in class

B.draw students to reading classic novels

C.make students less worried in English class

D.encourage students to red more challenging books小题3:Sarah thinks that the new approach might __________.

A.help students improve reading comprehension skills

B.help students hold meaningful conversations in class

C.make some students read books not suitable for them

D.make some students ignore the important works of literature小题4:Who has the same attitude towards the new approach with Kristin?

A.Donald.

B.Sarah.

C.Tristin.

D.John Guthrie.小题5:The author develops the text mainly by __________.

A.listing cases

B.making comparisons

C.following time order

D.explaining causes and effects

题型:单项选择题

流行性腮腺炎重症可见两侧腮腺化脓。

题型:单项选择题
如图所示,处在磁感应强度为B的匀强磁场中的单匝矩线圈abcd,以恒定的角速度ω绕ab边转动,磁场方向垂直于纸面向里,线圈所围面积为S,线圈导线的总电阻为R.t=0时刻线圈平面与纸面重合,且cd边正在离开纸面向外运动.则正确的是(  )

A.时刻t线圈中电流的瞬时值icosωt

B.线圈中电流的有效值I

C.线圈中电流的有效值I=

D.线圈消耗的电功率P

题型:单项选择题

在企业制度文化的内容中,能充分反映企业管理风格和文化特色的是( )

A.一般制度

B.特殊制度

C.企业风俗

D.企业风气

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