我国在改革开放前,整个社会最主要和最基本的投资来源是( )。A.私人投资 B.财政

题型:单项选择题

问题:

我国在改革开放前,整个社会最主要和最基本的投资来源是( )。

A.私人投资

B.财政支出

C.国有企业投资

D.外商投资

考点:初级经济基础知识初级经济基础知识
题型:单项选择题

阅读理解。

     What are your hobbies? Many children like stamp-collecting in their spare time. Do you know? Stamp

collecting didn't start until 1854.   As time passes,  there are more  and more  stamp-collectors.  Not only

children  but  also  men  and women are  collectors.   In some countries,  there are even lessons  on stamp

collecting in school. People are becoming more and  more interested  in stamps.  Every picture on a stamp

has its meaning in it.  It may be the head of a famous person,  an important place or special moment.  Each stamp tells us a story.   We can learn  a  lot  from stamps.   Now  stamp-collecting is my favourite hobby.  

Why not join us?          

1. Stamp-collecting started___________.

A.  earlier than 1845                

B.  later than 1921

C.  in 1854                        

D.  hundreds of years ago

2. Stamp-collectors are___________.

A. men and women                

B.  boys and girls

C.  neither young nor old          

D.  both A and B

3.  Lessons on stamp-collecting are given in___________.

A. a few countries  

B.  few countries  

C.  our country  

D.  America only

4. There are more and more stamp-collectors. This sentence means           

A. people are collecting different kinds of stamps

B. the number of stamp-collectors is growing

C. a group of people are collecting stamps

D. more and more stamps are being printed

5. Every picture on a stamp __________.

A. is the head of a stamp-collector

B. tells us something interesting

C. has nothing to do with America

D. tells us a story about some schools

题型:单项选择题

裸根起掘攀援植物时,保留的根系大小没有明确的标准,一般可参考灌木的标准。( )

题型:单项选择题

退虚热,清疳热的药物是

A.川乌
B.羚羊角
C.车前子
D.大黄
E.灶心土

题型:单项选择题

当采用220V/380V的TN及TT系统接地形式的低压电网时,照明和其他电力设备的供电关系是( )。

A.必需由同一台变压器供电,不应单独设置照明变压器

B.禁止由同一台变压器供电

C.经主管部门批准,可由同一台变压器供电

D.宜由同一台变压器供电,必要时亦可单独设置照明变压器

题型:单项选择题

CDMA网络一个频点的带宽是()。

A、200KHz

B、30KHz

C、3.75MHz

D、1.25MHz

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