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
考研
Electric cars are getting cheaper and their sales are on the rise, but their future success may depend on ditching a key【C1】____
Electric cars are getting cheaper and their sales are on the rise, but their future success may depend on ditching a key【C1】____
admin
2021-10-14
37
问题
Electric cars are getting cheaper and their sales are on the rise, but their future success may depend on ditching a key【C1】________: the heavy metal cobalt.
The mineral is used in the lithium-ion batteries that【C2】________most electric cars, and demand for it is【C3】________increasing. A new analysis by Elsa Olivetti at the Massachusetts Institute of Technology and her colleagues has found that there may be cobalt shortages【C4】________ we don’t start refining and recycling it more efficiently or in greater quantities.
The new analysis suggests short-term cobalt supply is【C5】________,【C6】________that more mining exploration,【C7】________in the ocean, is required.【C8】________we will need to【C9】________cobalt recycling by recovering it from batteries in【C10】________electric cars, laptops and mobile phones.
Another【C11】________is to shift to【C12】________that use less cobalt, or none at all. Elon Musk’s car firm Tesla is in【C13】________with battery manufacturer CATL to use entirely cobalt-free batteries in its China-made cars,【C14】________a report last week by Reuters.
Lithium-ion batteries in electric cars commonly use【C15】________lithium nickel cobalt aluminium oxide【C16】________lithium nickel manganese cobalt oxide for their ability to【C17】________a long lifespan and【C18】________energy density—a key factor in how【C19】________an electric car can go【C20】________a single charge.
【C6】
选项
A、though
B、and
C、while
D、but
答案
D
解析
逻辑关系题。四个选项分别为[A]though“虽然”;[B]and“而且”;[C]while-“虽然”;[D]but“但是”。根据原文“短期内钴供应是充足的,_______需要进行更多的采矿勘探”,结合前后语意可知,空格前后两个句子为转折关系,故空格处需填入一个表示转折的连词,只有[D]选项符合题意,故答案为[D]选项。
转载请注明原文地址:https://kaotiyun.com/show/YCY4777K
0
考研英语二
相关试题推荐
StudythefollowingdrawingcarefullyandWriteanessayinwhichyoushould:1)describethedrawing,2)interpretthemeaning
Weshouldconcentrateonsharplyreducinginterestratestopulltheeconomyoutof______.
Thebesttitleforthispassagewouldbe______.Accordingtotheauthor,whichofthefollowingisNOTnecessarilythecase?
TheUnitedStateshashistoricallyhadhigherratesofmarriagethanthoseofotherindustrializedcountries.Thecurrentannual
TheUnitedStateshashistoricallyhadhigherratesofmarriagethanthoseofotherindustrializedcountries.Thecurrentannual
Americansdon’tliketolosewars.Ofcourse,alotdependsonhowyoudefinejustwhatawaris.Thereareshootingwars—theki
Americansdon’tliketolosewars.Ofcourse,alotdependsonhowyoudefinejustwhatawaris.Thereareshootingwars—theki
Successfullearningisnota(n)______activitybutconsistsoffourdistinctstagesinaspecificorder.
Duringuncertaintimes,peopletendtolookbackandwonderhowitgottothis.Theyfeelmorekeenlytheirmissedopportunities
Duringtheday,Leipzig’sairportisquiet.Itisatnightthattheairfieldcomestolife.Nexttotherunwayayellowwarehous
随机试题
A.贝壳B.耳后腺及皮肤腺的干燥分泌物C.干燥整体D.除去内脏的干燥体E.病理产物僵蚕的药用部位是()。
升降式止回阀的流体是由低端进入阀内,由于阀前后流体的()所产生的推力大于阀瓣重力而将阀瓣顶开,流体由阀瓣与密封圈环缝通过高端流出阀体。
A公司的目标管理A公司决定在整个公司内实施目标管理,并根据目标实施和完成情况,每年进行一次绩效评估。事实上,该公司之前在为销售部门制定奖金系统时已经应用了这种办法。公司通过对比实际销售额与目标销售额,支付给销售人员相应的奖金。这样,销售人员的实际
求曲面x2+2y2一3z2一3=0上点P0(2,1,一1)处的切平面方程.
A.机化B.钙化C.包裹D.溶解吸收结核球的形成是干酪样物质被
下列结构计算简图与相对应的支座反力中,错误的是:
危险货物的托运应填制专门的危险货物运单,即红色运单。()
单只股票不能使用股指期货进行套期保值。()
WhichofthefollowingbranchesisnotbelongingtotheU.S.government?
铺设一条自来水管道,甲队单独铺设8天可以完成,而乙队每天可铺设50米。如果甲、乙两队同时铺设,4天可以完成全长的2/3,这条管道全长是多少米?
最新回复
(
0
)