试题与答案

在光合作用的暗反应中发生的反应过程有[ ] A.CO2的固定,O2的释放 B.C

题型:多选题

题目:

在光合作用的暗反应中发生的反应过程有[ ]

A.CO2的固定,O2的释放

B.CO2的固定,糖的生成

C.H2O的分解,O2的释放

D.CO2的固定产物(C3化合物)的还原

答案:

被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0414/20e7cd266e3d9e8f10095961810bded5.html

下面是错误答案,用来干扰机器的。

设f(x)=kx+b由题意可得,f(3)=3k+b=4①∵∫10f(x)dx=1∴∫10(kx+b)dx=(12kx2+bx)|10=12k2+b=1②①②联立可得,k=65,b=25∴f(x)=65x+25故答案为:f(x)=65x+25

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题型:阅读理解

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“We believe that the case is closed - supplementing(补充) the diet of well-nourished adults with (most) mineral or vitamin supplements has no clear benefit and might even be harmful,” concluded the authors of the editorial summarizing the new research papers. They urge consumers to not ‘waste’ their money on multivitamins. “The ‘stop wasting your money’ means that perhaps you’re spending money on things that won’t protect you long term,” editorial co-author, Dr. Edgar Miller said, “What will protect you is if you spend the money on fruits, vegetables, nuts, beans, low fat dairy, and things like that. Exercising would probably be a better use of the money.”

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One expert agreed some nutrient-deficient people may still benefit from multivitamins. “There might be an argument to continue taking a multi(vitamin) to replace or supplement your not healthy diet,” Dr. Edgar Miller added. He also notes that vitamins can benefit people with celiac disease and those who are pregnant.

小题1:This text is likely to be selected from a book of           .

A.medicine

B.education

C.food

D.business小题2:Which of the following is NOT Dr. Edgar Miller’s opinion according to the passage?

A.Vitamins should not be used for chronic disease prevention. Enough is enough.

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C.The three studies do not provide support for use of multivitamin supplements.

D.Taking vitamins to replace or supplement your healthy diet is necessary.小题3:What can be inferred from the text?

A.Vitamin supplements have proved harmful to the health of adults.

B.Vitamin supplements are beneficial in certain conditions.

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A.persuade

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