科学认识发生和发展的动因有两个方面,一是存在于科学外部的,是社会的()需要;二是存在

题型:填空题

问题:

科学认识发生和发展的动因有两个方面,一是存在于科学外部的,是社会的()需要;二是存在于科学内部的,是科学认识本身的逻辑。

考点:高职试题科学与技术中央广播电视大学2009
题型:填空题

短文改错。

     下面短文中有10处语言错误。请在有错误的地方增加、删除或修改某个单词。

增加:在缺词处加一个漏字符号(∧),并在其下面写上该加的词。

删除:把多余的词用斜线(\)划掉。

修改:在错的词下划一横线,并在该词下面写上修改后的词。

注意:1. 每处错误及其修改均仅限一词。 

          2. 只允许修改10处,多者(从第11除起)不计分。

     I was playing at my cousin house. Since his family was rich than mine, he had more toys than I did.

There was one on particular I'd always wanted. I put into my pocket when he wasn't looking. I guessed,

even at that age, I would never be able to enjoy to playing with the toy or faced my cousin again; I would

always know I'd done something wrong. Late on, my aunt drove me home. When she dropped me off, I

pulled out the toy slow and gave it back. She knows what had happened, but she thanked me and ever

mentioned it again.

_____________________________________________________________________________________

题型:填空题

计算题:已知n(CO2)=0.5mol,以CO2为基本单元,问m(CO2)=?(相对原子质量:C=12,O=16)

题型:填空题

若关系模式R的规范化程度达到4NF,则R的属性之间不存在非平凡且非______的多值依赖。

题型:填空题

某常规项目(IRR唯一),当i1=12%时,净现值为860万元;当i2=18%时,净现值为-600万元。基准收益率为10%,则该项目的财务内部收益率应()。

 

A.在12%和10%之间

B.小于12%

C.在12%和18%之间

D.大于18%

题型:填空题

下面哪一种内存条的频率是最高的()。

A.SDR

B.DDR

C.RDR

D.EDO

更多题库