对肺炎球菌肺炎有诊断价值的是（）。 A．血性痰液 B．铁锈色痰 C．痰液静置后出现分

患者，女，28岁，哮喘急性发作2天，患者及家属十分紧张，但根据动脉血气分析结果医生认为病情尚不严重，血气分析除低氧血症外，可能是以下哪种情况（）

A.PaCO降低，pH轻度偏碱

B.PaCO升高，pH正常

C.PaCO升高，pH明显降低

D.PaCO正常，pH在正常范围

E.以上都不是

下列图形对象中，具有拓扑关系的是（）。

A.

B.

C.

D.

A little old couple walked slowly into McDonald’s one cold winter evening. They were so old that they looked out of place amid the young families and young couples eating there that night.

　　Some of the customers looked admiringly at them. You could tell what the admirers were thinking. “Look, there is a couple who has been through a lot together, probably for 60 years or more!”

　　The little old man walked right up to the cash register, placed his order with no hesitation and then paid for their meal. The couple took a table near the back wall and started taking food off the tray. There was one hamburger, one order of French fries and one drink. The little old man unwrapped the plain hamburger and carefully cut it in half. He placed one half in front of his wife. Then he carefully counted out the French fries, divided them in two piles and neatly placed one pile in front of his wife. He took a sip of the drink, his wife took a sip and then set the cup down between them.

　　As the man began to eat his few bites of hamburger the crowd began to get restless. Again you could tell what they were thinking, “That poor old couple. All they can afford is one meal for the two of them.”

　　As the man began to eat his French fries one young man stood and came over to the old couple’s table. He politely offered to buy another meal for the old couple to eat. The old man replied that they were just fine. They were used to sharing everything.

　　Then the crowd noticed that the little old lady hadn’t eaten a bite. She just sat there watching her husband eat and occasionally taking turns sipping the drink.

　　Again the young man came over and begged them to let him buy them something to eat. This time the lady explained that, no, they were used to sharing everything together.

　　As the little old man finished eating and was wiping his face neatly with a napkin the young man could stand it no longer. Again he came over to their table and offered to buy some food.

　　After being politely refused again, he finally asked a question of the little old lady. “Ma’am, why aren’t you eating? You said that you share everything. What is it that you are waiting for?”

　　She answered, “ The teeth”.

46.The underlined phrase in the first paragraph most probably means ______________.

A. looked helpless    B. looked romantic  

C. looked unsuitable  D. looked cheerful

47.Why did some of the customers admire them?

A.Because they walked in hand in hand.

B.Because they come to McDonald’s together.

C.Because they have been together for many years

D.Because they come in such a cold winter evening

48.How much food did the man get?

A.One hamburger, one French fries and one cup of tea

B.One hamburger, two French fries and two cups of tea

C.One hamburger, one French fries and two cups of tea

D.One hamburger, two French fries and one cup of tea

49.How did the young man feel about what he saw in the old couple?

A. Admiring   B. Bad    C. Good    D. Guilty

50.Why didn’t the old lady eat her portion of meal?

A.Her artificial teeth didn’t fit her well.

B.She forgot to bring her teeth with her.

C.Her husband had not finished using the teeth.

D.She was waiting for someone to get her teeth for her.

下列的哪项不是通常的借款原因？（）

A.销售增长

B.自发性融资增加

C.盈利能力减弱

D.固定资产投资增加

秦朝的国家行政机构分为（）、（）和（）三级。