在一定地域内，______与______所形成的统一的整体叫做生态系统．

弓形虫病是人畜共患病，人是弓形虫的（）。

A、中间宿主

B、终末宿主

C、贮藏宿主

积极参加无偿献血是每一位健康公民应尽的义务．下列有关献血和输血的说法中，错误的是（　　）

A．一个健康的成年人，一次献血200～300毫升不会影响身体健康

B．献血有利于提高自身造血器官的造血功能

C．输血时血型不同就会造成血液凝固

D．输血时应以输同型血为原则

Forget hard work and perseverance. Getting ahead is as simple as tidying your desk.

According to a leading expert, having a cluttered environment reflects a cluttered mind, but the act of tidying up can help you be more successful. The advice comes from Jayne Morris, the resident"life coach" for NHS Online, who said it is no good just moving the mess around. In order to clear the mind, unwanted items must be thrown away to free your "inner world", she said.

Ms Morris, who claims to have coached celebrities to major business figures, said:“Clearing clutter from your desk has the power to transform your business. " How? Because clutter in your outer environment is the physical sign of all the clutter going on inside of you. " Clearing clutter has a chain effect across your entire life, including your work. Having an untidy desk covered in clutter could be stopping you achieving the business success you want. " She is sure cleaning up will be helpful even though some of history's biggest achievers lived and worked in messy conditions.

Churchill was considered untidy from a boy throughout his life, from his office to his artist's studio,and the lab where Alexander Fleming discovered penicillin was famously untidy.

Among the recommendations is that simply tidying a desk at work and an overflowing filing cabinet(陈列柜) will instantly have a positive impact on "your inner world. " Anything that is no longer used should not be put into storage but thrown away completely.

Keeping something in the loft, garage or other part of the house, does not help because it is still connected to the person "by tiny energetic li.nes", Ms Morris. claims.

She said, "The things in your life that are useful to you, that add value to your life, that serve a current purpose are charged with positive energy that refreshes you and enriches your life. But the things that you don't ever use and don't need anymore have the opposite effect on your energy.

Things that no longer fit or serve you, use up your energy. "

小题1:The underlined word "cluttered" (in Para.2) is closest, in meaning to __

A．messy

B．brief

C．complex

D．aggressive小题2:Which of the following statements does Ms Morris agree to?

A．Changing the position of staff frequently will help to build up a clear mind.

B．A tidy office will lead to a success in your business affairs in no time.

C．To have a free mind, we need to throw away unneeded items at times.

D．You can pack up your things in garage or loft to cheer you up.小题3:According to Ms Morris, an untidy desk probably means that         

A．you are quite a failure

B．you are in a messy mind

C．you are toe tired to deal with it

D．you have achieved the business success小题4:Which of the following would be the best title for the passage?

A．Less untidy, more successful.

B．How to improve your inner world.

C．Cleaning up makes you less intelligent.

D．Being bigger achiever needs more effort.

(一)某大型物资管理部门打算实行仓库物流的自动化，可实施的方案有两个，这两个方案都可以达到仓库物流自动化的目标。但是，两方案初期投资额。年作业费用及寿命期不同(如下表所示)。基准收益率为12%.已知：(P/A，12%，7)=4.564，(P/A，12%，13)=6.424，(A/F，12%，7)=0.09912，(A/F，12%，13)=0.03568.

根据题意，回答下列问题：

A方案的费用年值是（）万元。

A．75.44

B．76.86

C．82.52

D．86.55