实验探究: 蚯蚓是常见的一种动物。请根据所学知识回答下列问题并完成后面的探究活动

题型:探究题

问题:

实验探究:

蚯蚓是常见的一种动物。请根据所学知识回答下列问题并完成后面的探究活动。

(1)蚯蚓生活在富含腐殖质的湿润的土壤中,通过________和_________的配合使身体蠕动,昼伏夜出,以植物的枯叶、朽根和其他有机物为食。

(2)探究蚯蚓在玻璃板和粗糙的纸上运动速度的快慢。

①提出的问题是______________________

②作出的假设是:______________________ 

③制定计划:取一条活的蚯蚓放在玻璃板上,观察它的运动,并测量它在2min里蠕动的距离。将这条蚯蚓放在粗糙的纸上,观察它的运动,也测量它在2min里蠕动的距离。如此进行3次,求出蚯蚓在玻璃板和糙纸上各自运动的平均距离。对比结果,得出结论。

④实施计划(按实验计划进行)在观察过程中,你如何保证蚯蚓能正常呼吸?_________

⑤得出结论:________________

考点:动物的形态结构和功能科学研究方法
题型:探究题

工作单位对个人社会化的作用,主要表现在()。

A.建立以职业为纽带的基本社会关系

B.使人的社会化呈现出鲜明的职业特色

C.职业影响人们的社会威望和价值观念

D.工作过程是调适、学习过程

E.培养组织纪律性和竞争、协调意识

题型:探究题
某商场出售一批进价为2元的贺卡,在市场营销中发现此贺卡的日销售单价x(元)与日销售量y(个)之间有如下关系:
日销售单价x(元)3456
日销售量y(个)20151210
则y与x之间的函数关系式为______.
题型:探究题
Random ramblings from a guy who is too busy to have a Web site. On the bright side, you won't find any ads, pop-ups, hype, or any attempts to sell you anything at all. Furthermore, you won't find any pages divided into a hundred little boxes. And the text is so large, you don't need an electron microscope to read it. A refreshing break from reality.  Anyway, here's what I have so far as I gradually resurrect my poor neglected Web site.
PC Survival Camp
Being new to computers, or even just being a “casual user”, isn’t always fun. It's as though everybody on the planet assumes you already know all the buzzwords, and already possess all the skills necessary to use a computer.  Which is a really big assumption, when you consider that nobody was ever born knowing how to use a computer. The links below provide some quick mini-tutorials on all the skills and buzzwords that everyone else seems to assume you already know. Click on any link (underlined text) for a quick mini-lesson. Use the Back button at the bottom of any
page to work your way back to this page.
TechFear Camp
Jargon Camp
Internet Camp
Windows XP Camp
Wrong button!
Hardware
What is the Net?
Desktop
Crash the Internet!
Ports
What's Bandwidth?
Start menu
Erase everything!
KB, megabytes, etc.
What's Download?
Taskbar
Run out of space!
Software
What Web browser?
Quick Launch
Email privacy!
Toolbars
Getting around
Notifications
Viruses!
 
What e-Mail client?
Moving and Sizing
Hackers!
 
Death to pop-ups
Control Panel
 
 
 
More...
If you're looking for Microsoft Access stuff, click here.
l I'm gradually bringing back some of my old HTML stuff here.
l If you have a question, Ask Alan
小题1:Who is the passage written for?
A.EveryoneB.College students.
C.Anyone who wants to use a computer.D.An expert on computers.
小题2:What’s the advantage of this web site?
A.It’s cheap.B.There are no ads.
C.It’s modern.D.It provides an electron microscope.
小题3:You can learn computer skills except_____.
A.Erase everything!B.Software.C.Flash .D.Taskbar.
小题4:If you have problems, ask____ for help.
A.Coolnerds.comB.PC survival Camp
C.AlanD.HTML Stuff
题型:探究题

标准酒度

题型:探究题

依次填入下列各句横线处的词语,恰当的一组是( )
①对于长期以来一直以恪守中立政策安身立命的小国瑞士来说,是否加入联合国是一个关系到全球化时代如何维护自身利益的困难______。
②最近,最高人民法院对两千多件司法及司法解释性文件进行了全面清理,其中______的177件已向社会公布。
③有关调查显示,取消教育附加费后,我国农村义务教育经费的______将成为迫切需要解决的难题。

A.抉择 废弃 筹办
B.抉择 废止 筹措
C.选择 废弃 筹措
D.选择 废止 筹办

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