Y=8X,X和Y成______比例.XY=3,X和Y______比例.

题型:填空题

问题:

Y=8X,X和Y成______比例.XY=3,X和Y______比例.

考点:正比例的意义,反比例的意义
题型:填空题
Here is the timetable of science activities in the Children’s Palace.
                              Time table
       Monday
19:00 — 21:30
Space and Man
Dr. Thomas West
Would you like to know more about the outer space?
(4 weeks)
        Tuesday
18:30 — 20:30
Photography
Mr. Brown from Italy
Learn to take good pictures, please bring your own camera.
(5 weeks)
       Wednesday
18:30 — 21:00
Computer Science
Prof. Harry Morison from Oxford University
Learn how to use Windows 2000.       (12 weeks)
      Thursday
19:00 — 21:00
Modern Medicine
Prof. Lucy green
Would you like to know medical advances?
(4 weeks)
        Saturday
14:00 — 17:00
Technical English
Prof. Rose Beet
Do you want to learn the technical words and articles?
(16 weeks)
       Sunday
8:30 — 11:30
Exhibition of Personal Inventions
You can see many inventions by the students; you may also bring your own inventions.
(2 weeks)
小题1:If you want to learn technical English, you should go to the Children’s palace on ______.
A.WednesdayB.ThursdayC.SaturdayD.Sunday
小题2: The teacher who teaches photography is from ______.
A.EnglandB.ItalyC.AmericaD.China
小题3:The computer science class may last for about  ________ .                                             
A.2 weeksB.4 weeksC.12 weeksD.16 weeks
题型:填空题
用中子轰击硼核发生的核反应是:++X.其中的X粒子应是(  )

A.α粒子

B.β粒子

C.质子

D.中子

题型:填空题

根据流动性偏好理论,投资者认为投资于长期债券要承担较高的价格风险,这是因为长期债券未来收益会( )。

A.下降

B.升高

C.不变

D.有更强的不确定性

题型:填空题

下列关于细胞增殖表述正确的是()

①动物体细胞有丝分裂后期,细胞每一极均含有同源染色体

②动物体细胞有丝分裂后期,细胞每一极均不含同源染色体

③生物体细胞有丝分裂过程,染色体DNA与胞质DNA平均分配

④生物胞质中的遗传物质在细胞分裂时,随机地、不均等地分配

⑤生物减Ⅱ后期细胞中,染色体数目为2的倍数,不含同源染色体

⑥生物减Ⅱ后期细胞中,染色体数目为2的倍数,含有同源染色体

A.①④⑥

B.①④⑤

C.②④⑤

D.②③⑥

题型:填空题

用电信息采集系统主要采集方式有哪些?

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