G+细菌细胞壁中不含有的成分是()。A、类脂 B、磷壁酸 C、肽聚糖 D、蛋白质

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问题:

G+细菌细胞壁中不含有的成分是()。

A、类脂

B、磷壁酸

C、肽聚糖

D、蛋白质

考点:微生物学微生物细胞的结构与功能微生物细胞的结构与功能题库
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Mr. King works in a shop and drives a car for the manager.  He drives carefully and can keep calm in time of danger.  And he escaped from several accidents.  The manager pays him more and the traffic policemen often speak highly of him.   Mr. Baker, one of his friends, works in a factory outside the city.  It's far from his house and he has to go to work by bus.  As the traffic is crowded in the morning, sometimes he's late for the work.  His manager warns the young man that he will be  sent away unless he gets to his office on time.  He hopes to  buy a car, but he hasn't enough money.  He decides to buy an  oldd one.    He went to the flea (跳蚤) market and at last he chose a beautiful but cheap car.  He said he wanted to have a trial (试验) drive, the seller agreed.  He called Mr.  King  and asked him to help him.  Mr.  King examined the car at first and then drove it away.  It was five in the morning and there were few cars in the street.  At first he drove slowly and it worked well.  Then he drove fast.  And when he reached a crossing, the lights turned red.  He tried to stop it, but he failed and nearly hit an old woman who was crossing the street.  A policeman told him to stop, but the car went on until it hit a big tree by the road.  "Didn't you hear me?" the policeman asked angrily.   "Yes, I did, sir," said Mr.  King, "Since it doesn't listen to me,can it obey you?"

小题1:From the passage, we know Mr. King is a         .

A.manager

B.driver

C.worker

D.policeman小题2:Mr.  King is paid more because he _______.

A.always drives very slowly

B.is not afraid of danger

C.had driven for years

D.drives very well小题3:Mr.  Baker went to the flea market to _______.  

A.buy a second-hand car

B.have a trial drive

C.choose a new car

D.sell his old car小题4:Mr. King tried to stop the car when _______.  

A.he saw an old woman crossing the street

B.he saw a big tree

C.the traffic lights turned red

D.the policeman shouted angrily at him小题5:Which of the following is true?

A.Mr. King will be sent away if he keeps being late

B.Mr. Baker can't afford to buy an old car

C.Mr. King didn't hear the policeman

D.Something was wrong with the car

题型:单项选择题

由多振子电子探头超声束形成的伪像称为()。

A.混响效应

B.切片厚度伪像

C.旁瓣效应

D.声影

E.后壁增强效应

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下列对零余额账户用款额度的表述中正确的是()。

A.该科目借方登记收到授权支付到账额度

B.该科目贷方登记支用的零余额用款额度

C.该科目期末贷方余额反映事业单位尚未支用的零余额用款额度

D.年度终了,该科目年末无余额

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预应力方法矫正主梁是一种通过机械的力量使主梁恢复上拱度的方法。

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