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
2024-02-23
48
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] 【C6】
选项
A、little
B、many
C、much
D、these
答案
B
解析
此处是肯定句,修饰可数名词选many。
转载请注明原文地址:https://tihaiku.com/zcyy/3474804.html
相关试题推荐
Sinceabout1800,nearthebeginningoftheindustrialrevolution,coal,pet
Sinceabout1800,nearthebeginningoftheindustrialrevolution,coal,pet
Sinceabout1800,nearthebeginningoftheindustrialrevolution,coal,pet
Sinceabout1800,nearthebeginningoftheindustrialrevolution,coal,pet
Sinceabout1800,nearthebeginningoftheindustrialrevolution,coal,pet
Sinceabout1800,nearthebeginningoftheindustrialrevolution,coal,pet
Sinceabout1800,nearthebeginningoftheindustrialrevolution,coal,pet
Sinceabout1800,nearthebeginningoftheindustrialrevolution,coal,pet
Sinceabout1800,nearthebeginningoftheindustrialrevolution,coal,pet
Sinceabout1800,nearthebeginningoftheindustrialrevolution,coal,pet
随机试题
Thegrowthofpopulationduringthepastfewcenturiesisnoproofthatpopu
有关医学模式的描述正确的是A.一种医疗方法 B.一种卫生工作方式 C.一种医
结核分枝杆菌对异烟肼耐药机制A:与过氧化氢酶和过氧化物酶活性增强有关B:与rp
A.红外线波长比蓝光波长短 B.红光与X射线都是电磁波 C.恒星温度越高,发
下列关于社会环境因素中同辈群体的说法,正确的有()。A.同辈群体是一种非正式的
一般来说,当中央银行将基准利率调高时,股票价格指数将()。A.上升 B.
以下属于网络促销工具的是()A.有奖销售 B.积分促销 C.虚拟货币
收入确认与计量的五个步骤中,主要与收入的确认相关的有( )。 A.识别与客户
在不含地下水的软土层中,控制精度低的柔性管道施工,一般采用( )。A.顶管法
砌筑墙体中,可以不设置过梁的洞口最大宽度为()。A.250mm B.300m
最新回复
(
0
)