首页
登录
职称英语
Since about 1800, near the beginning of the industrial revolution, coal, pet
Since about 1800, near the beginning of the industrial revolution, coal, pet
游客
2023-07-22
30
管理
问题
Since about 1800, near the beginning of the industrial revolution, coal, petroleum and gas have been used at a rapidly increasing rate. The supply of these【C1】______is limited and electric power is very【C2】______in many places. Some scientists believe solar energy is the only【C3】______that can meet the world’s enormous【C4】______for power. Great progress had been made harnessing the sun. Not only is the sun now used in cooking, 【C5】______it also supplies power for【C6】______things as beacon lights for ships and airplanes. It【C7】______telephone lines, portable radios, electric clocks, hearing aids, and even communication satellites. Some homes and office buildings in U. S. A. are now being【C8】______with solar energy. The three most【C9】______types of solar equipment so far are the furnace, the still(蒸馏器)and the cell. Solar furnaces heat water or air,【C10】______is then circulated through a building to make it comfortable. Solar stills are【C11】______important because they can provide【C12】______water at a relative cheap rate. Salt can easily be【C13】______from sea water with solar still. The most highly developed type of solar【C14】______equipment is the solar cell. Some cells are so【C15】______that they can turn 16% of the energy they receive from the sun【C16】______electric energy. One of the cell’s biggest advantages is【C17】______it can be made either small enough to carry【C18】______large enough to produce current that can run an automobile. Besides, it has a very long life. It is still too expensive for the【C19】______consumer but when ways are【C20】______to produce it more cheaply, we can expect its use to be widely-spread. [br] 【C15】
选项
A、effective
B、reliable
C、resourceful
D、efficient
答案
D
解析
effective“有效果的”;efficient“效率高的”,从16%的电能转化率来看,应选后者。reliable“可靠的”; resourceful“资源丰富的”。
转载请注明原文地址:https://tihaiku.com/zcyy/2858549.html
相关试题推荐
Supermarketsarebeginningtostockorganicfood,___________(以满足顾客对更安全、更健康的肉类和蔬菜
[originaltext]M:I’mdoingsomeresearchintotheFrenchrevolution.W:Oh,Id
TheUnitedStatesbecamearichindustrialnationtowardtheendofthe1800
TheUnitedStatesbecamearichindustrialnationtowardtheendofthe1800
TheUnitedStatesbecamearichindustrialnationtowardtheendofthe1800
TheUnitedStatesbecamearichindustrialnationtowardtheendofthe1800
TheUnitedStatesbecamearichindustrialnationtowardtheendofthe1800
TheUnitedStatesbecamearichindustrialnationtowardtheendofthe1800
Thebenefitstocitizensofmodernindustrialsocietymayhave【C1】______some
Thebenefitstocitizensofmodernindustrialsocietymayhave【C1】______some
随机试题
Whydoesthewomandoyoga?[br][originaltext]W:I’vedoneyogaforages,but
Thecompanyprovidesguidanceandhelpsothatyoucandecorateyourhouse______
汤显祖的戏剧代表作有哪些()。A.《紫萧记》 B.《紫钗记》 C.《长生殿》
下列关于地下连续墙钢筋骨架施工叙述错误的是()。A.骨架主筋的接长宜采用机
7岁男童,15天前咽痛,自服羟氨苄青霉素后好转,8天前低热,近4日右肩和左膝疼痛
人事测评小组的成员应包括()A:公司高层管理人员 B:招聘岗位资深任职人员
关于工序能力指标的用途,下列说法正确的有()。A.工序能力指标可以帮助企业确
下列关于Gamma的说法错误的有()。A.Gamma值较小时,意味着Del
随机区组设计的方差分析中,ν等于A.ν-ν B.ν-ν C.ν-ν D.ν
下列合同实施偏差处理措施中,属于合同措施的是()。A.采用新的高效率的施工方案
最新回复
(
0
)