回心血量增加使心肌收缩加强属于A.正反馈调节 B.负反馈调节 C.自身调节 D.神经

题型:单项选择题

问题:

回心血量增加使心肌收缩加强属于

A.正反馈调节

B.负反馈调节

C.自身调节

D.神经-体液调节

考点:普通考研西医综合西医综合
题型:单项选择题

某机构,针对酒瘾者开展的小组工作,设定以下工作目标:①降低饮酒量和饮酒频率;②减少饮酒后的失控行为发生率,特别是暴力行为;③增进饮酒者的情绪管理技巧。此项小组设计活动,说明了小组活动设计中需要考虑哪一种因素( )

A.小组活动只是一种辅助手段,它是为实现小组目标、完成小组工作的任务服务的

B.设计小组活动时,要综合考虑组员的心理、情绪等方面的特征和能力

C.设计小组每一阶段的活动,都要保持阶段性目标与小组的最终目标相一致

D.设计小组活动要考虑到现时的空间环境、资源供给等状况

E.设计小组活动要考虑小组组员的费用和交通状况

题型:单项选择题

在国际结算中,有关当事人只是处理单据,银行只看单据而不管货物,对所装货物的实际情况如何、是否中途损失、能否如期到达目的港,均不负责任的国际结算方式是()结算。

A.汇款

B.信用证

C.光票托收

D.跟单托收

题型:单项选择题

C

In the mid 1990’s, people started doing business on the Internet. At that time, there were two kinds of companies. First, there were traditional companies. They sold things in stores. Then there were Internet companies. They didn’t have a store, and they only sold things on the Net.

Traditional companies didn’t want to lose any business. Quickly they made their own websites and began selling things on the Net. These are the so-called “brick and click” companies. Many stores are made of brick. And you click on your mouse to buy things with your computer. That’s where the name “brick and click” comes from.

By the late 1990’s, e-business like amazon.com, buy.com and etoys.com were in trouble. Their profits(利润) were not very high. Competition was great. Many of these business were losing lots of money. In 2000, many e-business went out of business.

Why are “brick and click” companies, like Barnes and Noble, Toys RVs and Walmart so successful? First, many customers know and trust their names. Their websites like walmart.com. are easy to remember. These companies also have lots of experience. They know how to run a successful business.

In the world of e-commerce, companies are fighting for every dollar and every customer. Will “brick and click” companies win the war? Only time will tell.

64 . Which of the following would be a “brick and click” company?

A. A restaurant.          

B. A clothing company with no website.

C. A bookseller with five stores and a website.             

D. A video seller with a big website but no stores.

65  What did many traditional companies do in the mid 1990’s?                .

A .They went out of business.              B. They made their websites. 

C. They bought Internet companies.         D. They sold their companies.

66  What gave Internet companies lots of trouble in the late 1990’s?.               

A. Heavy competition                  B. They were short of money.   

C. They didn’t know what to do.          D. people didn’t believe in them.

67 . “Brick and click” companies are so successful because______.               

A. people trust them                  B. their names are easy to remember   

C. they are experienced               D. all the above

68 . Which of the following is TRUE according to the passage?

A. All the “brick and click” companies run a successful business.

B. “Brick and click” companies are certain to win the business competition.

C. It is uncertain whether “brick and click” companies will win the competition.

D. Both “brick and click” companies and Internet companies will be successful in the future.

题型:单项选择题

药物的LD50 值愈大,表示其

A.毒性愈大

B.毒性愈小

C.作用愈强

D.作用愈弱

E.治疗指数愈高

题型:单项选择题

成人双手占体表面积()。

A.3%

B.5%

C.7%

D.9%

E.12%

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