下列指标中，( )表明技术方案在正常生产年份中，单位投资每年所创造的年净收益额。

May is National Bike Month. a month-long event trying to get couch potatoes outside, cars off the roads and subway trains empty. It encourages everyone to get back onto their bicycles to enjoy riding a bike an often as they can during the month (and hopefully longer). May in the beginning summer and warm weather, so why not start right away and enjoy sunshine!

Ride Out to Protect the Environment

Bike month helps everyone make their efforts to improve theenvironment. If you’rebiking to school, you are helping bring down the air pollution. It is the most common form of pollution andby getting your family to stop driving and start riding a bike, you can do your part in improving the air quality.

Count Down Those Calories

Cycling isn’t just good for theenvironment; it’s good for you too. Riding a bicycle burns calories and helps keep you healthy. It not only improves your physical health, but also your mental state of mind. It can really help you be a happier person.

Share the Sunny Summer

So get into that shed, and take out your old bike. Paint the bike blue. Put on a nice coat. Load up a number of songs. Invite a group of friends to get on the bikes and ride this May! Be a fun-in- the-sun child! Enjoy yourself!

小题1:The second paragraph mainly tells us that riding bicycles       .

A．improves our physical health

B．does good to the environment

C．changes our mental slates of mind

D．helps us enjoy the sunny spring小题2:You’re likely to read the article in the        section of a magazine.

A．history

B．geography

C．sports

D．food小题3:The writer writes the article to       .

A．advise people to lose more weight

B．ask people to repair and paint the old bikes

C．preventpeople from staying at home watching TV

D．makepeople realize the advantages of riding bicycles

项目经理管理一个为期五个月费用实报实销合同的项目，项目已经运作了两个月，总共有500个任务，其中100个已完工。所有任务在费用与持续时间方面都很相似，且在这几个月中分页期间，以下图表说明绩效。（纵为任务：0、100、200、200、300、400、500、600行为月：0、1、2、3、4、5）项目经理预计还需要几个月才能完成项目？（）

A、四个月

B、五个月

C、八个月

D、十个月

软件调试的目的是______。

A) 发现错误
B) 改正错误
C) 改善软件的性能
D) 挖掘软件的潜能

售后服务的主要内容有哪些？

焦油加工的主要任务是获得酚、萘、蒽等纯产品和（）等粗产品。