问题 单项选择题

代谢性碱中毒治疗时输入等渗盐水是因为()

A.恢复细胞外液量

B.等渗盐水内钠较血清钠低

C.增加尿中NaHCO3的排出

D.等渗盐水含Cl-较血清氯含量高,纠正低氯碱中毒

E.补充水分

答案

参考答案:D

解析:

Cl-大量丧失后,细胞外液量的Cl-减少,血浆中HCO3-相应增多,导致低氯性碱中毒。输入等渗盐水Cl-增多,可纠正低氯性碱中毒。

阅读理解

Why is pink or purple a color for girls and blue or brown for boys?

The answer depends largely on cultural values as well as personal experiences. To the Egyptians, green was a color that represented the hope and joy of spring, while for Muslims, it means heaven. Red is a symbol of good luck in many cultures. In China, children are given money in a red envelope to bring good fortune in the New Year. For many nations, blue is a symbol of protection and religious beliefs. Greek people often wear a blue necklace hoping to protect themselves against evils(灾祸).

People’s choice of colors is also influenced by their bodies’ reactions (反应)toward them. Green is said to be the most restful color. It has the ability to reduce pain and relax people both mentally and physically. People who work in green environment have been found to have fewer stomach aches.

Red can cause a person’s blood pressure to rise and increase people’s appetites(食欲). Many decorators will include different shades of red in the restaurant. Similarly, many commercial websites will have a red “Buy Now” button because red is a color that easily catches a person’s eye.

Blue is another calming color. Unlike red, blue can cause people to lose appetite. So if you want to eat less, some suggest that eating from blue plates can help.

The next time you are deciding on what to wear or what color to decorate your room, think about the color carefully.

小题1:Muslims regard green as a symbol of heaven mainly because of their        .

A.cultural values

B.commercial purposes

C.personal experiences

D.physical reactions to the color小题2:Why will many commercial websites have a red “Buy Now” button?

A.To relax people physically.

B.To increase people’s appetites.

C.To encourage people to make a purchase.

D.To cause a person’s blood pressure to rise.小题3:What color might help lose weight according to the text?

A.Red

B.Green.

C.Blue.

D.Purple.小题4:Which of the following would be the most proper title for the text?

A.Colors and Human Beings

B.The Cultural Meaning of Color

C.Colors and Personal Experiences

D.The Meaning and Function of Color

多项选择题