溃疡病临床表现的最主要特征是：（）A.恶心、呕吐 B.腹胀、嗳气 C.明显反酸 D.

带来生产力的空前提高及生产技术的巨大变革，导致了原有城市空间与职能的巨大重组的是（）

A.商业化

B.全球化

C.工业化

D.多元化

阅读理解

    Sarah came running in. "Look what I found."Over the top of the paper I was reading came a crispy long

object that caused me to jump. It was a snake skin that had been shed by one of our many garden snakes.

     "Isn't it beautiful?" said my wideeyed sevenyearold daughter.

     I stared at the organic wrapper and thought to myself that it really wasn't that beautiful,but I have

learned never to appear uninterested with children. They see only good quality and excellence in the

world until educated otherwise.

     "Why does it do this?" Sarah asked.

     "Snakes shed their skin because they need to renew themselves." I explained. "Why do they need to

renew themselves?" Sarah asked.

     I suddenly remembered an article on this page many years ago where the writer was expressing her

concept of renewal. She used layers of paper over a wall to describe how we hide our original selves, and

said that by peeling away those layers one by one, we see the original beneath. "We often need to shed our

skins and those coatings that we cover ourselves with." I said to my now absorbed daughter. "We outgrow

some things and find other ones unwanted or unnecessary. Tills snake no longer needs this skin. It is probably too crinkly (起皱的) for him, and he probably doesn't think he looks as smart in it as he once did."

    Sarah was getting the point. As we talked, I knew that she began to understand, although slightly, that

renewal is part of progress; that we need to take a good look at ourselves, our rooms, schoolwork and

creativity, and see what we need to keep and what we need to cast off. I was careful to point out that this

is a natural consequence of their growth.

     "I see, Dad." said Sarah and jumped off my lap and ran off.

     I hoped she would remember this. That often, in order to find our real selves underneath the layers of

community and culture with which we cover ourselves year after year, we need to start examining these

layers. We need to gently peel some away, as we recognize them to be worthless or unnecessary; or at

best, store the ones thrown away as mementoes (念想) of our promotion to a better vitality or spirit.

1．At the first sight of the snake skin, the author was________.

A. scared        

B. puzzled      

C. uninterested          

D. excited

2．Sarah learned from her father that renewal is________.

A. to recover the layers inside

B. to review what has been done

C. a natural part of getting mature

D. the process of finding the unwanted

3．It can be inferred from the passage that the author________.

A. dislikes the snake skin at all

B. shows concern for nature and culture

C. can grasp the chance to educate children

D. often encourages his daughter to raise questions

4．The author mainly tells the reader that________.

A. snakes cast off the layers to look smarter

B. we should renew ourselves to get improved

C. snakes shed their skins to renew themselves

D. we should explore our original nature underneath

炎症性囊肿是（）

A.含牙囊肿

B.牙源性角化囊肿

C.牙源性钙化囊肿

D.葡萄状牙源性囊肿

E.根尖周囊肿

单反数码相机标准镜头的视角大约是（）.

A、46度

B、90度

C、120度

D、24度

乙分公司境外所得已纳税额的扣除额( )万元。

A．16.50

B．20

C．12

D．9.90