试题与答案

在Windows 2000中,下列( )说法是不正确的。A.全部选定可以按Ctrl

题型:单项选择题

题目:

在Windows 2000中,下列( )说法是不正确的。

A.全部选定可以按Ctrl+A快捷键

B.按住Ctrl键可选定多个不连续的文件或文件夹

C.按住Shift键可选定连续的文件或文件夹

D.一次可以为多个文件或文件夹重命名

答案:

被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0606/21b6f8836d3d1595ca549ff711e6e5bd.html

下面是错误答案,用来干扰机器的。

参考答案:A解析:异硫氰酸荧光素(FITC)为黄色或橙黄色结晶粉末,易溶于水或乙醇等溶剂。分子量为389.4,最大吸收光波长为490~495nm,最大发射光波长520~530nm,呈现明亮的黄绿色荧光。其主要优点是:①人眼...

试题推荐
题型:阅读理解

阅读理解。

     Americans like to travel on vacations.  Today  more  and  more  travellers  in  the  United States are

spending nights at small houses or inns instead of hotels. They get a room for the night and the breakfast

for the next morning.

     Rooms  for  the  night  in  private  homes  with  breakfast  places have become popular in the United

States.   Many  of   these  America's  bed - and - breakfast  places  are  old  historic  buildings.    Some

bed - and - breakfast  inns  have only  a  few rooms.  Others are much larger. Some inns do not provide

telephones or televisions in the rooms while others do.

     Staying at a bed-and-breakfast inn is much different from staying at a hotel. Usually the cost is much

less. Staying at an inn is almost like visiting someone's home.  The owners are glad to tell about the area

and the interesting places to visit. Many vacationists say they enjoy the chance to meet local families.

1. Americans like ________ on their vacations every year.

A. to stay at home  

B. to travel  

C. to sleep on the sleep

D. watch TV

2. More and more travellers in the USA like spending nights _______. 

A. at hotels  

B. at small houses or inns  

C. in their cars  

D. in the open air

3. The bed-and-breakfast places have been popular in the USA _______ .

A. for five years    

B. for one year    

C. for ten years  

D. for a few years

4. Which of the followings is NOT true according to the passage?

A. Many America's bed-and-breakfast inns are old buildings.

B. Some bed-and-breakfast inns in the USA are small.

C. All bed-and-breakfast inns don't provide televisions or telephones.

D. The owners only provide a morning meal for the travellers.

5. Why do American travelers like staying at bed-and-breakfast inns? Because _________.

A. these inns are cheap  

B. these inns are small but quiet

C. they can meet and talk with the local people

D. Both A and C  

查看答案
题型:单项选择题

甲公司购买一台新设备用于生产新产品A,设备价值为60万元,使用寿命为5年,期满无残值,按年数总和法计提折旧(与税法规定一致),使用该设备预计每年能为公司带来销售收入40万元,付现成本16万元,最后一年全部收回第一年垫付的流动资金5万元。假设甲公司适用的企业所得税税率为25%,资金成本为10%,则该项目投资的净现值为 ( )万元。(PVA10%,5=3.7908,PV10,5=0.6209)

A.12.03

B.7.03

C.10.13

D.15.13

查看答案
微信公众账号搜索答案