变构调节和化学修饰调节的共同特点是A.引起酶蛋白构象变化 B.酶蛋白发生共价修饰 C

题型:单项选择题

问题:

变构调节和化学修饰调节的共同特点是

A.引起酶蛋白构象变化

B.酶蛋白发生共价修饰

C.属于快速调节力式

D.有放大效应

考点:普通考研西医综合全国硕士研究生入学统一考试西医综合真题2008年
题型:单项选择题

随着经济社会的快速发展和城镇化进程的不断加快,新建筑不断出现,与此同时,大量的建筑垃圾也在不断产生。建筑垃圾没地方堆放,已成为很多城市面临的难题。这表明

①自在事物的联系是客观的

②事物的联系是普遍的

③事物的联系可以根据人们的需要而变化

④人为事物的联系是客观的

A.①③

B.②③

C.③④

D.②④

题型:单项选择题

把A、B两块质量相等的铁片分别放进盛有等质量,等质量分数的盐酸和硫酸的两个烧杯中,两烧杯分别放在一天平的左右两个托盘上.充分反应后铁片都有剩余,则天平指针(  )

A.偏向盐酸一边

B.偏向硫酸一边

C.无法判断

D.天平平衡

题型:单项选择题

Helen is 15 years old, and Joan is 15, too. So Helen is            Joan.

A. as big as             B. as older as                 C. as old as

题型:单项选择题

某责任中心生产甲产品,2006年预算产销量2000件,预算单位成本60元;实际产销量 2400件,实际单位成本56元,其中:单位变动成本为36元。
要求:
(1)若该责任中心为技术性成本中心:
①计算该成本中心的成本变动额;
②计算该成本中心的变动率。
(2)若该责任中心为人为利润中心,内部转移价格为90元/件,固定成本中利润中心负责人可控固定成本为30000元。
①计算该利润中心负责人可控利润总额;
②计算该利润中心可控利润总额。

题型:单项选择题

A lot of management training is given each year for Circle K corporation, a national chain of convenience stores. Among the topics we address in our course is the retention(保护力) of quality employees-a real challenge to managers when you consider the pay scale(标准) in the service industry. During these discussions, I ask the participants, “What has caused you to stay long enough to become a manager?” Some time later, a new manager took the question and slowly, with her voice almost breaking, said, “It was a $ 19 baseball glove.”

Cynthia told the group that she originally took a Circle K clerk job as an temporary position while she looked for something better. On her second or third day behind the counter, she received a phone call from her nine-year-old son, Jessie. He needed a baseball glove for Little League. She explained that as a single mother, money was very tight, and her first check would have to go for paying bills. Perhaps she could buy his baseball glove with her second or third check. When Cynthia arrived for work the next morning, Patricia, the store manager, asked her to come to the small room in the back of the store that served as an office. Cynthia wondered if she had done something wrong or left some part of her job incomplete from the day before. She was worried and confused.

Patricia handed her a box. “I overheard you talking to your son yesterday,” she said, “and I know that it is hard to explain things to kids. This is a baseball glove for Jessie because he may not understand how important he is, even though you have to pay bills before you can buy gloves. You know we can’t pay good people like you as much as we would like to; but we do care, and I want you to know you are important to us.”

The thoughtfulness, emphasis and love of this convenience store manager demonstrates vividly that people remember more how much an employer cares than how much the employer pays.

49. Among many of the problems in the service industry, talked about in this passage, is ______.

A. how to ensure his employees’ high pay    

B. how to attract more customers

C. how to look carefully after the employees

D. how to keep the good employees from leaving

50. A new manager, Cynthia would do her job well in keeping quality employees because she ______.

A. had mastered all the courses for the manager.

B. had already formed good relationship with the employees

C. knew the way how to deal with her employees

D. had her own personal experience

51. This passage shows us that to run a business well it is necessary for managers to let their employees know ______.

how much they can get for their job       

B. what good positions they can get later

they are very important to the business     

D. they are nice as well as useful

52. The story told in this passage tells us the employees care about ________.

A. only how large a pay they can get      

B. love from the managing people rather than only money

C. if their children could be properly taken care of

D. what position they can be offered

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