It seemed so promising—mirrors sprawled across desert land in the scorching southwest delivering clean electricity and helping Americans out of the increasing fuel crisis. Some scientists and industry developers claim that Nevada’s empty and sun-drenched expanses alone could supply enough electricity to power the entire country.
Now even the optimists fear this wonderful prospect may be a mirage. Congress cannot make up their mind to extend the tax-reducing bill for solar-energy projects, which solar advocates say is critical to the future of their industry but which is due to expire at the end of the year. The latest attempt failed in the Senate earlier this month, prospects for a deal before November’s presidential and congressional elections now look dim. Uncertainty has led some investors to delay or abandon projects in the past few months. Rhone Resch, the president of the Solar Energy Industries Association, said if the tax-reducing bill is allowed
A. show the technology of solar energy
B. spotlight the high technology in the United States
C. introduce the prospect of solar energy
D. explain how to make use of Nevada’s empty and sun-drenched expanses
Cultural norms so completely surround
people, so permeate thought and action that we never recognize the assumptions
on which their lives and their sanity rest. As one observer put it, if birds
were suddenly endowed with scientific curiosity they might examine many things,
but the sky itself would be overlooked as a suitable subject; if fish were to
become curious about the world, it would never occur to them to begin by
investigating water, e For birds and fish would take the sky and sea for
granted, unaware of their profound influence because they comprise the medium
for every fact. Human beings, in a similarly way, occupy a symbolic universe
governed by codes that are unconsciously acquired and automatically employed. So
much so that they rarely notice that the ways they interpret and talk about
events are distinctively differen A. show that they, too, have their respective cultures B. explain humans occupy a symbolic universe as birds and fish occupy the sky and the sea C. illustrate that human beings are unaware of the cultural codes governing them D. demonstrate the similarity between man ,birds, and fish in their ways of thinking [单选题]油管传输射孔作业,采油(气)树井口压力级别要()。
A.与地层压力相匹配 B.高于地层压力 C.低于地层压力 D.高于35MPaMPa [单项选择]嘧啶核苷酸从头合成途径首先合成的核苷酸是
A. CMP B. OMP C. TMP D. UMP E. UDP [简答题]论述婚姻家庭的社会职能?
[多项选择]关于漏电保护器安装与使用,以下说法正确的是()。
A. 使用的漏电保护器应符合选择条件,即电网的额定电压等级应等于保护器的额定电压,保护器额定电流应大于或等于线路的最大工作电流 B. 保护器试验按扭回路的工作电压不能接错。电源侧和负载侧也不能接错 C. 总保护和干线保护装在配电室内,支线或终端线保护装在配电箱或配电板上并保持干燥通风、无腐蚀性气体的损害 D. 在保护器负荷侧零线不得重复接地或与设备的保护接地线相连接 [填空题] 行车过程中,无法自动报站时司售人员进行手动报站,到终点站后,及时报告( )。
[单项选择]计算机中使用的图像压缩编码方法有多种,JPEG是一种使用范围广、能满足多种应用需求的国际标准。在允许有失真但又不易被察觉的要求下,JPEG一般能将图像压缩( )倍。
A. 5倍以下 B. 100倍左右 C. 50倍左右 D. 10倍左右 [填空题]38.穿越跨坐式单轨轨道梁时,必须确认人、物等距离接触网( )米以上。
[判断题]《铁路行包运输管理办法》(铁总运[2016]259号)规定,列车在中途站进行装卸作业时,押运人应当暂停喂养和巡视,及时离开行李车货仓,待装卸作业完毕后再行继续。
A.正确 B.错误 我来回答: 提交
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