题干

呼吸作用过程的正确表达公式是(  )

A:有机物+氧→二氧化碳+水+能量

B:二氧化碳+水→有机物+氧+能量

C:水+氧→二氧化碳+有机物+能量

D:有机物+二氧化碳→氧+水+能量

上一题 下一题 0.0难度 选择题 更新时间:2016-08-30 11:28:12

答案(点此获取答案解析)

A

同类题2

阅读理解

    A MENTORING (导师制) program is giving life changing opportunities to Banbury youth.

    Young Inspirations was founded two years ago to provide mentoring sessions for students and unemployed young adults aged 11 to 21.

    Alex Goldberg, the program's founder, said; "We set up Young Inspirations because we wanted to give young people experiences which will potentially be life changing and broaden their outlook.

    "We try to create work experience opportunities that will really make a difference to our youth. For example, we've secured internships (实习) with world-famous firms such as Honda.

    "At a time of funding cutbacks where schools are finding it more and more difficult to offer this kind of mentoring, it is extremely important that these opportunities are available both to help youth with their school work and grades and to give them opportunities which may help shape their futures. " Kieran Hepburn, 14, is one of a group of Banbury youth who has benefited from the program so far. In October the Banbury School pupil was accompanied by Young Inspirations staff to Paris where he was an observer at the United Nations Educational, Scientific and Cultural Organization's (UNESCO) International Youth Forum (论坛).

    The event was held for young people from around the world, to seek their views on how the future of youth and education should look. Kieran joined several hundred observers mostly in their 20s and was the only UK school pupil to attend the event. Kieran thinks the trip was a life changing experience. " Before we left I didn't quite know what to make of it but when we got there we didn't stop, it was amazing," he said, " We went to three or four hours of debates each day and then did something cultural each afternoon. "

    The main theme of the forum was how youth can drive change in political and public life. It dealt with issues (问题) such as drug abuse, violence and unemployment.

    Kieran said: " It has really helped me to improve my confidence and social skills as well as my school grades and I was voted most improved pupil at school in August. "

    The Young Inspirations mentoring sessions take place each Friday in Banbury. For details visit www.younginspirations.com.

同类题3

阅读理解。

    Learning to speak English well may be the best thing you can do to improve your life. That's right. If you can communicate in English, you can do the following things:

    Contact (联系) people from all over the world. Talk about your ideas and opinions on Internet discussion groups. Send e-mails to interesting people. Learn about their life and culture.

    Travel more easily. Communicate with people wherever you go—English is spoken in more than 100 countries. Ask directions, have a conversation, or ask for help. Maybe English will save your life some day!

    Push your career forward. If you want a good job in business, technology, or science, get out of that armchair and start learning English now! If you already have a good job, start learning before you lose it! Knowing English will let you do the following things:

    Put “excellent knowledge of English” on your CV (履历). Get your dream job, and earn more money.

    Gain technical knowledge. English is the language of technology, especially high technology like computer science, and medicine. If you're going to read about technology, you'll probably have to do it in English.

    Be a world-class businessman or woman. It's simple. International business is done in English. And all business today is international. So if you want to play, you have to know English—to contact other business people, go to conferences, and read international business newspapers and magazines, ect.

    Become a better scientist. Contact scientists from other countries, go to international conferences, and visit research centers abroad. Learn about new scientific discoveries by reading papers, books, and magazines.

    Use your computer more effectively. Most computer applications are in English, so you will understand them better—and become a better employee.