我国宪法的修改须由全国人大以（）。 A.代表的2/3的多数通过 B_爱下问搜题

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问题单项选择题

我国宪法的修改须由全国人大以（）。

A.代表的2/3的多数通过

B.代表的2/3以上的多数通过

C.全体代表的2/3的多数通过

D.全体代表的2/3以上的多数通过

答案

参考答案：D

完形填空

A. stable B. solutions C. considerable D. role E. included
F. task G. compose H. impact I. challenges J. certainly

With the world's population growing from six to nine billion by 2050, researchers, businesses and governments are already dealing with the ___小题1:___ this increase will have on everything from food and water to infrastructure (基础设施) and jobs. The demand for energy will keep growing, and is expected to double over the next 40 years.
Finding the resources to meet this demand in a ___小题2:___, sustainable way is the basis of our nation's energy security, and will be one of the major ___小题3:___of the 21st century. Alternative forms of energy- bio-fuels, wind and solar are ___小题4:____ being funded and developed, and will play a growing___小题5:___ in the world's energy supply. But experts say that even when combined, alternative energy sources will likely meet only about 30% of the world's energy needs by 2050.
For example, even with ___小题6:___ investments, such as the $93 million for wind energy development ___小题7:___ in the American Recovery and Reinvestment Act, important alternative energy sources such as wind and bio-fuels __小题8:___ only about 1% of the market today.
Energy and sustainability experts say the answer to our future energy needs will likely come from a lot of ___小题9:___ both traditional and alternative.

名词解释

工作测量（时间研究）