题干

如图,是某几何体的三视图,其中矩形的高为圆的半径,若该几何体的体积是 52π
3
,则此几何体的表面积为(   )

A:33π

B:34π  

C:36π

D:42π

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A

同类题2

根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

        My daughter Chloe is starting out in college in the fall. With her newfound independence will come the newfound responsibilities of dealing with money.____Now I have a few lessons I'd like to share with Chloe, and with anyone else starting out in college.

____OK,this is almost the only lesson you need. The biggest reason you get into money problems is that you spend money you don't really have. Then you end up in the hole, and it's hard to get out of the hole. You work too many hours to keep up with your spending. And you end up with a life that's about nothing but trying to pay for all the spending on something you don't really need.____

        Make a very simple budget. It's a terrible thing for people who've never done a budget, but it will become very simple and easy if you know how to do it.____If the bills add up to more than theincome, remove some bills. Pay bills right away. If you have the money, pay thebill as soon as it comes in. You can usually do this online, but if not, it's just a matter of writing a check, putting it in an envelope, and writing out an address—two minutes.____ If you let the bill­ paying get pushed back, it becomes a terrible thing.

      That's all you need to know. If you save when you're in college, avoid debt, and paybills on time, you're golden.

A.Why not enjoy your life in college?

B.Spend less than you earn.

C.So spend less, work less, worry less, be happier.

D.Like many young people, she hates thinking about money.

E.First, list your income, and then list your bills.

F.Find ways to get things done you need to get done.

G.Do this two­minute action at once, so you don't have toworry about it later.

同类题4

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    Travelling around the world with children is difficult enough, while attempting it without using motorized transport is even more of challenge.Even so, Dario Schworer a 42-year-old climatologist and mountain guide, and his 33-year-old wife Sabine are on a journey to do just that.

    The Swiss couple want to travel across the world's oceans and climb the highest mountain on every continent to promote Earth-friendly ways of life.

    "We are collecting good examples of dealing with climate change and living in harmony with nature and we want to spread such ideas." Schworer said."We want to help people affected by global warming and to inspire children for the future."

    Recently after having spent three months teaching children in the Everest region, the couple want to show it is possible to travel through the world's climate zones using just human-power and forces of nature.

    In the 47 countries they have visited they have collected 22 tons of trash, taught people in Ecuador how the sun's rays can be used to clean water and inspired a person in Chile to build a house on water with recycled plastic bottles as a foundation.They have also collected trash in the mountains of Nepal with school children.

    So far they have communicated with 45,000 children from South America, Australia and Asia, giving presentations about the importance of recycling and using alternative energy like solar and wind power.

    When they began their adventure in 2003 they had no children of their own.But since then two has become five: daughter Sabine is now five years old, Andri was born in Chile and baby Neo was born in Australia.

    Initially the couple thought they would complete their travels in four years, but now, they believe it could take seven more.

    "Since our belief is the need to respect nature, we travel only when conditions are good," Schworer said.