理论上将1000吨水送到1米高度耗电量应为（）A、0.736KW.h B、75KW._爱下问搜题

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问题单项选择题

理论上将1000吨水送到1米高度耗电量应为（）

A、0.736KW.h

B、75KW.h

C、1.36KW.h

D、2.723KW.h

答案

参考答案：D

完形填空

When I was a teenager, my dad did everything he could to advise me against becoming a brewer（酿酒人）. He’d　 36　 his life brewing beer for local breweries only to make a living, 37 were his father and grandfather before him. He didn’t want me　 38　 near a vat （酿酒用的桶）of beer.
　　So I did as he asked. I got good　 39　 , went to Harvard and in 1971 was accepted into a graduate program there that　 40　 me to study law and business at the same time.
　　In my second year of grade school, I began to realize that I’d　 41　 done anything but go to school. So, at 24 I decided to drop out.　 42　 , my parents didn’t think this was a great idea. But I felt strongly that you can’t 43 till you’re 65 to do what you want in life.
　　I packed my stuff into a bus and headed to Colorado to become an instructor at Outward Bound. Three years later, I was ready to go back to　 44　 . I finished Harvard and got a highly paid job at the Boston Consulting Group. Still, after working there five years, I　 45　 . Is this what I want to be doing when I’m 50? At that time, Americans paid　 46　 money of beer in low quality. Why not make good beer for　 47　 ? I thought.
　　I decided to give up my job to become　 48　. When I told Dad, he was　 49　 , but in the end he　 50　 me. I called my beer Samuel Adams,　 51　 the brewer and patriot who helped to start the Boston Tea party.　 52　 I sold the beer direct to beer drinkers to get 53　out. Six weeks later, at the Great American Beer Festival, Samuel Adams Boston Lager won the top prize for American beer. In the end I was destined to be a brewer. My 54　to the young is simple: Life is very　 55　 , so don’t rush to make decisions. Life doesn’t let you plan.

A．Fortunately

D．my decision

C．an instructor

D．an engineer

单项选择题

按照联合国的规定，老年型国家是指60岁和60岁以上的人口占总人口的( )

A．5%

B．10%

C．15%

D．20%