问题 填空题 案例分析题

下图甲表示动物体生命活动调节的部分过程,图中字母代表激素;图乙表示的是运动神经纤维末梢和骨骼肌细胞之间的联系。请据图回答:

骨骼肌受神经支配,运动神经末梢和骨骼肌之间靠Ach(乙酰胆碱)传递信息,Ach是一种兴奋型递质,在没有神经冲动传过来时,Ach存在于图乙中()中。当神经冲动传到轴突末梢时,Ach进入③中,然后与Ach受体结合,引起肌肉收缩。在Ach进入③的过程中,穿越生物膜的层数是()。

答案

参考答案:①;0

完形填空
“Cleverness is a gift while kindness is a choice.Gifts are easy—they're given after all. Choices can be hard.”
I got the     to start Amazon 16 years ago.I      the fact that the Internet usage was growing at 2300 percent per year.I’d never seen or heard of anything that grew so fast,and the idea of building an    bookstore with millions of titles was very      to me.I had just turned 30,and I’d been married for a year.I told my wife that I wanted to           my job and go to do this crazy thing that probably wouldn’t       since most start-ups don’t,and I wasn’t sure what to      .She told me I should      the idea.I’d always wanted to be an inventor,and she wanted me to follow my      .
I was working at a financial firm in New York City with a     boss that I admired very much.I went to my boss and      with him that I wanted to start a company selling books on the Internet.He took me on a long walk in Central Park,listened     to me,and finally said,“That sounds like a really good idea,   it would be an even better idea for someone who didn’t already have a good job.”That logic made some          to me,and he convinced me to think about it for 48 hours      making a final decision.Seen in that light,it really was a difficult      ,but finally, I decided I had to give it a shot.I didn’t think I’d regret    and failing.And I suspected I would always be troubled by the decision not to try at a11.After much          ,I took the less     path to follow my dream,and I’m      of that Choice.For all of us,in the end,we are our choices.
小题1:
A.ideaB.supportC.fund D.message
小题2:
A.got throughB.set asideC.came acrossD.turn down
小题3:
A.onlineB.availableC.intelligentD.expensive
小题4:
A.practicalB.excitingC.flexible D.productive
小题5:
A.takeB.1andC.exchange D.quit
小题6:
A.matterB.workC.failD.exist
小题7:
A.doB.finishC.plan D.expect
小题8:
A.give upB.set upC.stick to D.put off
小题9:
A.dreamB.paceC.hobby D.example
小题10:
A.cruelB.brilliantC.greedy D.honest
小题11:
A.sharedB.arguedC.reasoned D.required
小题12:
A.graduallyB.eventuallyC.carefully D.generously
小题13:
A.soB.andC.otherwise D.but
小题14:
A.senseB.differenceC.bet D.bargain
小题15:
A.whileB.beforeC.once D.since
小题16:
A.puzzleB.suggestionC.choice D.report
小题17:
A.managingB.requestingC.changing D.trying
小题18:
A.considerationB.determinationC.conversationD.application
小题19:
A.difficultB.secureC.amusing D.interesting
小题20:
A.confidentB.regretfulC.hopeful D.proud
单项选择题