慢性呼衰，给氧原则是（） A.持续高流量 B.持续低流量吸氧 C.间断低流量 D.先

下列各组物质中，属于同一种物质的是[ ]

A．纯碱和烧碱

B．金刚石和石墨

C．熟石灰和消石灰

D．冰和干冰

姜堰市政有五个不同的工程被三个公司中标，则共有        种中标情况（用数字作答）。

女性，55岁。活动后气急3年，近2个月来出现腹部胀大伴下肢水肿入院。以往有乙型肝炎曾3次住院治疗。体检：巩膜黄染，心界向两侧扩大。心尖搏动及第一心音减弱，心尖区有Ⅲ级收缩期杂音，两肺底少量湿性啰音。腹腔积液明显，肝脾无法扪及，下肢水肿。血压130/95mmHg。肝B超示淤血性改变。心电图为完全性右束支传导阻滞伴左前束支传导阻滞

为了进一步了解肝脏情况，测得总蛋白70g/L，白蛋白30g/L，球蛋白40g/L。目前腹腔积液和黄疸的最可能原因为（）

A.慢性右心衰

B.慢性活动性乙型肝炎

C.红斑狼疮的肝脏损害

D.慢性心脏压塞的表现

E.以上都不对

以下关于龈沟液哪项是错误的

A．为渗出液，成分主要来源于血清
B．健康牙龈的龈沟液量极少
C．机械刺激可使龈沟液分泌增加
D．龈沟液具有防御功能
E．龈沟液为漏出液，来自牙龈结缔组织间液

In the past ten years, many scientists have studied the differences between men and women. And they all got the same answer: The sexes(性别) are different, because their brains are different. And this, the scientists say, makes men and women see the world in different ways.

Boys, for example, generally are better than girls at mathematical ideas. Boys also generally are better than girls at the kind of hand and eye movements necessary for ball sports. Girls, on the other hand generally start speaking earlier than boys. And they generally see better in the dark than boys and are better at learning foreign languages.

What makes men and women better at one thing or another? The answer is the brain. The brain has two sides connected by nerve(神经) tracks. The left side generally is used for mathematics, speech and writing. The right side is used for artistic creation(创造) and the expression for emotions(情感). In men and women, different areas in each side of the brain develop differently. In boys, for example, it’s the area used for mathematics. In girls, it is the area used for language skills. Another interesting difference is that the two sides of a man’s brain are connected by a smaller number of nerves than the two sides of a woman’s brain are.

小题1:Which of the following is the best title of the article?

A．Research on the Brain

B．Men and Women are Different in Brain

C．People’s Different Brains

D．Who Are Better, Boys or Girls小题2:__________ men and women think differently.

A．The different brains make

B．Sex makes

C．The different experiences make

D．The influences(影响) of society make小题3:According to the article, girls are generally better than boys at __________ in your school.

A．mathematics

B．physics

C．English

D．chemistry小题4:Which of the following is true?

A．The left side of brain in boys generally develops better than that in girls.

B．The left side of brain in girls generally develops better than that in boys.

C．Men are better than women in all things.

D．The area in girls used for language skills develops better.小题5:60. The number of nerves connecting the two sides of the brain in men __________.

A．is the same as women’s

B．is different from women’s

C．is larger than women’s

D．is twice as large as women’s