在计算机的五大功能部件中,负责从存储器读取指令,经分析译码,产生一串操作命令发向各个

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问题:

在计算机的五大功能部件中,负责从存储器读取指令,经分析译码,产生一串操作命令发向各个部件的是【 】。

考点:计算机等级考试信息管理技术计算机三级(信息管理技术)55
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煮沸裂解法制备质粒时所用溶菌酶溶液是用下面哪种溶剂配制的()

A.TE

B.TAE

C.TBE

D.TrisCl

E.冰乙酸

题型:填空题

紫外线消毒灭菌的主要机制是()

A.损伤细胞壁

B.损伤细胞膜

C.干扰DNA复制

D.破坏酶系统

E.干扰蛋白质合成

题型:填空题

以下关于return语句的叙述中正确的是

A.一个自定义函数中必须有一条return语句

B.一个自定义函数中可以根据不同情况设置多条return语句

C.定义成void类型的函数中可以有带返回值的return语句

D.没有return语句的自定义函数在执行结束时不能返回到调用处

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阅读理解

     On my first day of teaching,I found that I spent 85 per cent of my energy disciplining and 15 per cent

teaching knowledge.Of course I had some wonderful,serious students who would do well wherever they

were in life,but others worked hard to push themselves to the limit (限度).At night I went home

exhausted,often near tears.What gave me the idea I wanted to teach?

      And then there was Matthew.

     After school Matthew would come into my classroom to dust erasers or empty the wastepaper basket.

     "Why do you come in to visit me?" I asked him one night.

     "Because at home no one listens to me," was his reply.Later I found out that there were eleven children in his family,with Matthew near the middle.

     One time when he came to see me,he said,"Miss Ausmus,the kids are saying that you and Mr D.like each other."

     "Matthew,Mr D.is a nice man and we both teach some of the same students.He is not my boyfriend,

and it's not something the children should be talking about anyway."

     Another time,he said,"Will you wait for me so I can marry you when I grow up?"

     "Sorry,Matthew,but that won't work," I answered in a gentle way.

     When my birthday arrived,his mother made me a cake.She delivered (递送) it after school,and as

Matthew was carrying it up the school steps,he tripped (绊倒),dropping the cake.I found him in tears.I

told him that bringing me a cake was very,very special,whether I was able to eat it or not.

     After my second year of teaching,I said "goodbye" to Matthew and his family.

     Years passed and in 1992,I went back to the little town to visit.Matthew's parents still lived in the same house.His mother greeted me warmly."Janet,"she said,"Thanks for all the time you spent encouraging

Matthew.You taught him to believe in himself.You are the reason he went to college."

     I had made a difference in the life of a young boy.But I wonder...did Matthew ever know the difference he made in mine?

1. How did the author feel at the beginning of her teaching?

A. Embarrassed.  

B. Excited.

C. Frustrated.  

D. Amused.

2. By saying "others worked hard to push themselves to the limit",the author meant other students

________.

A. were forced to challenge themselves

B. made efforts to challenge their classmates

C. needed to be encouraged to learn

D. did everything they could to do well

3. Why did Matthew visit the author after school?

A. Because he had less communication at home.

B. Because he wondered if she liked Mr D.

C. Because he decided to marry her when he grew up.

D. Because he was going to celebrate her birthday.

4. Under the influence of the author,Matthew became________.

A. honest  

B. sincere

C. confident  

D. hardworking

5. What difference did Matthew make to the author?

A. He encouraged her to win Mr D.'s love.

B. He made her become enthusiastic about disciplining.

C. He gave her the courage to continue teaching.

D. He got her to understand what was true love.

题型:填空题

患者,男,55岁。CT示左侧小脑半球囊实性肿瘤,呈大囊小结节状,增强扫描囊性成分无强化,小结节明显强化,病灶外见一粗大血管深入病灶内。诊断为()

A.脑内结核

B.脑脓肿

C.胶质瘤

D.血管母细胞瘤

E.室管膜瘤

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