(4分)现有下列4种物质:① Cl2、② NO、③Na2O2、④Na2SO4溶液

题型:填空题

问题:

(4分)现有下列4种物质:① Cl2、② NO、③Na2O2、④Na2SO4溶液。其中,可用向上排空气法收集的气体是       (填序号,下同);常温下为无色的气体是      ;与CO2反应产生的气体能使带火星木条复燃的是       ;加入BaCl2溶液产生白色沉淀的是       

考点:元素的性质生活中的元素(常量元素、微量元素)
题型:填空题

________of the land in that area________covered with trees and grass.[ ]

A.Two fifth;is  

B.Two fifth;are

C.Two fifths;is  

D.Two fifths;are

题型:填空题

同一车间不同的产品可以同时采用不同的成本计算方法,甚至同一产品的不同步骤也可以采用不同的成本计算方法。()

题型:填空题

阅读理解

     Every year Chris Brogan posts his three words for a new year. I and many others have followed his

lead for the past three or four years. They helped me a lot. My words for last year were "passion",

"focus" and "delegate" and I stayed true to them. This year, 2012, my goals are more personal and less

professional.

     FOCUS

     Focus is making a repeat appearance on my list this year because I'm too much of a multitasker. The

problem is that I have trouble finishing one thing with so many things calling me.  When I was working as

a writer, all my projects were handled via a schedule, which kept me organized. This year I'm going to

have each task scheduled. I'm putting a fitness and housekeeping routine into my schedule.

     HEALTH

     I get so busy taking care of everyone else, I forget to take care of myself and this has to change.  My

health suffers and my weight suffers. I have to get my health in check, not only for me-but because I

promised my 9-year-old son. I'll make sure to take time to exercise every day and make good food and

lifestyle choices. I miss being thin, and it's time to get it back.

     CELEBRATE

     What good is having it all if I'm not taking time to enjoy it?I have a wonderful job, a happy family, and

so much to be thankful for. So how come I spend all my time working? Last summer my family took our

first vacation in four years, the best thing I've done for myself and my family in a long time. This year, I'm

making sure to take time to enjoy life and celebrate its many blessings.

     Do you have any words for 2012?

1. The underlined word "multitasker" probably refers to a person who________.

A. makes a living by writing

B. always fails to finish a task on time

C. has several things to do at the same time

D. pays more attention to fitness and housekeeping

2. Why does the writer have "health" as one of his three words?

A. He wants to take better care of others.  

B. He's gaining weight and feeling bad.

C. He did not take any exercise in the past.  

D. He got the idea from his son.

3. What can we learn from the passage?

A. The word "celebrate" can remind the writer to enjoy life.

B. The writer has a vacation with his family every four years.

C. The word "focus" can help the writer focus on his family.

D. The writer used to be overweight for lack of exercise.

4. The best title for the passage might be________?

A. Three Words for 2012            

B. Health Should Go First

C. Keep Organized                  

D. Goals for 2012

题型:填空题

试述心理治疗作用。

题型:填空题

查病人还原血红蛋白30g/L,血清结合、非结合胆红素均增高,粪便颜色正常,可能为()。

A.中心性发绀

B.周围性发绀

C.胆汁淤积性黄疸

D.溶血性黄疸

E.肝细胞性黄疸

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