首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
Space is filled with radiant energy and beyond earth’s atmosphere this energy flow steadily and intensely from the sun. An abund
Space is filled with radiant energy and beyond earth’s atmosphere this energy flow steadily and intensely from the sun. An abund
admin
2013-03-11
44
问题
Space is filled with radiant energy and beyond earth’s atmosphere this energy flow steadily and intensely from the sun. An abundant and essential【C1】______of energy would be used in space by developing satellite solar【C2】______stations. To live in space, humans must be protected【C3】______the fierce intensity and penetrating sunlight. The colony will have to have enough energy to【C4】______a fairly uniform temperature. The sun is not dimmed【C5】______an atmosphere. Shaded materials not【C6】______to direct sunlight will almost be absolute zero, while the temperature can soar above the【C7】______point. The colony will need to have both heaters and【C8】______Fortunately, sun’s energy can be converted【C9】______electricity. Converting sun’s energy, we would【C10】______stations in the space that would intercept【C11】______sunlight. The stations intercept enough sunlight to【C12】______five nuclear reactors and they could be as【C13】______as nine miles long and four miles wide while they weigh twenty thousand tons. This is a【C14】______free way to generate electricity and cost no【C15】______than coal or nuclear energy. Solar cells do the actual converting. A useful material found in lunar soil is silicon which is used to make solar cells.【C16】______we can produce a large amount of these cells and then we avoid any problems of【C17】______the material from earth. A solar cell is made from two thin layers of silicon. Sunlight【C18】______on the cell shakes the electrons【C19】______, and then these electrons move off into an outside circuit, which is detected as an electrical current. Things are arranged【C20】______most of the work involved in generating the electricity is done by forces associated with the atoms themselves.
【C3】
选项
A、between
B、for
C、from
D、to
答案
C
解析
固定搭配题。protect from是“保护不受……侵害”的意思,这句的意思“保护人类不受强烈的阳光侵害”,所以应该选C。between,for,to不能与protect搭配构成固定词组。
转载请注明原文地址:https://kaotiyun.com/show/Leu7777K
0
大学英语四级
相关试题推荐
SunlightisagreatsourceofvitaminDinmostoftheworld.Yeta(an)【C1】______numberofexpertsthinkthatmanypeoplearen’
Oneinsix.Believeitornot,that’sthenumberofAmericanswhostrugglewithhunger.Tomaketomorrowalittlebetter,Feedin
A、Shortageoffunding.B、Lackofresources.C、Transportproblems.D、Poormanagement.C女士说该地区存在地理问题(geographicalproblems),并对此进行了
A、Diligent.B、Indifferent.C、Competent.D、Inefficient.C细节题。浏览选项可知,四个选项皆是对人性格的描述,可能考查人物个性。对话结束时,女士提到,她之前的老板说她的abilitytofindon
A、Therisingpricestructureshouldbecontrolled.B、Rawmaterialcostsmorethanlabor’shighwages.C、Theeconomicnewsalways
YadinneededhundredsofpeopletohelphimbecausethepalaceofMasadawashugeandtheworkwasdifficult.KingHerodhadhi
GrowthinoilandgassupplieswillmaketheU.S.virtuallyself-sufficientinenergyby2030,accordingtoaBPreportpublish
A、Thelengthofthecourse.B、Theroutethecycliststake.C、Thenumberoftheparticipants.D、Themonthinwhichthetourishe
Onceitwaspossibletodefinemaleandfemaleroleseasilybythedivisionoflabor.Menworkedoutsidethehomeandearnedthe
Thehorsecameintoexistencebeforemanonearth.AlthoughtheearliestremainsofprimitivehorseshavebeenfoundontheNort
随机试题
以下关于法定继承的说法,错误的是()。
栝蒌桂枝汤中栝蒌指()
A.肾上腺素B.α-巨球蛋白C.尿激酶D.5-羟色胺E.钙可抑制纤溶酶的物质是
某市调查学生患牙龈炎情况,已知以前调查结果患病率为50%,要求抽样误差为10%,需要调查的人数为
重力和黏滞力分别属于()。
三相鼠笼式异步电动机在空载和满载两种情况下启动电流的关系是( )。
在选择路堤填料时,严禁作为填料的土有()。
持票人甲将汇票遗忘在出租车上,随即通知付款银行暂时停止支付该汇票金额的行为是票据保全措施。()
某企业2011年度有关工资和福利费资料如下:本期用银行存款支付离退休人员工资500000元。假定应付职工薪酬本期减少额均以银行存款支付,应付职工薪酬期初和本期期末均为贷方余额。假定应付职工薪酬年初余额、本期分配或计提金额和期末余额中均不包含离退休人员工
计算机软件可分为(1)两大类。
最新回复
(
0
)