首页
登录
职称英语
With the world’ s population estimated to grow from six to nine billion by 20
With the world’ s population estimated to grow from six to nine billion by 20
游客
2024-01-26
43
管理
问题
With the world’ s population estimated to grow from six to nine billion by 2050, researchers, businesses and governments are already dealing with the impact this increase will have on everything from food and water to infrastructure (基础设施) and jobs. Underlying all this 【C1】______ will be the demand for energy, which is expected to double over the next 40 years.
Finding the resources to meet this demand in a 【C2】______, sustainable way is the cornerstone (基石) of our nation’ s energy security, and will be one of the major【C3】______of the 21st century. Alternative forms of energy—bio-fuels, wind and solar, to name a few— are 【C4】______ being funded and developed, and will play a growing【C5】______in the world’ s energy supply. But experts say that, even when【C6】______, alternative energy sources will likely meet only about 30% of the world’ s energy needs by 2050.
For example, even with【C7】______investments, such as the $93 million for wind energy development 【C8】______ in the American Recovery and Reinvestment Act, important alternative energy sources such as wind and bio-fuels 【C9】______ only about 1% of the market today.
Energy and sustainability experts say the answer to our future energy needs will likely come from a lot of【C10】______—both traditional and alternative.
A) stable B) solutions C) significant D) role
E) progress F) marvelous G) included H) growth
I) exactly J) consist K) comprise L) competitions
M) combined N) challenges O) certainly [br] 【C4】
选项
答案
O
解析
本句话不缺少成分,意义也完整,且在实义动词之前,可推测这里应该是副词,certainly更符合题意。
转载请注明原文地址:https://tihaiku.com/zcyy/3394789.html
相关试题推荐
OnChina’sNetizenPopulationForthispart,youareallowed30minutestou
[originaltext]Astheworldpopulationrises,thedemandformeat,eggsand
ItisreportedthatcourierservicesinChinawilldeliverabout12billionp
It’shotnowinAfghanistan,where35%ofthepopulationisunder-fed.Buts
It’shotnowinAfghanistan,where35%ofthepopulationisunder-fed.Buts
It’shotnowinAfghanistan,where35%ofthepopulationisunder-fed.Buts
ThenumberofspeakersofEnglishinShakespeare’stimeisestimatedtohave
ThenumberofspeakersofEnglishinShakespeare’stimeisestimatedtohave
ThenumberofspeakersofEnglishinShakespeare’stimeisestimatedtohave
ThenumberofspeakersofEnglishinShakespeare’stimeisestimatedtohave
随机试题
Whatisthepatientsufferingfrom?[originaltext]M:Ifyou’lljusthaveaseat,
[originaltext]M:Theticketstotonight’sshowingare$5foradultsandhalfth
ThespaceageofficiallybeganonOctober4,1957,【C1】______theSovietUnion
混凝土搅拌机按安装形式分为( )。A.周期式、连续式 B.自落式、强制式 C
生理性体重下降的范围一般是出生体重的()A.15%~20% B.10
女,58岁。绝经后出现阴道少量流血1个月。妇科检查见宫口脱出红色肿物,直径约4.
为了进一步验证研究结论的(),应通过交叉检验等方法进行进一步抽样调查分析。A:
A.排便时无痛,排便终末时粪便沾有鲜血,并有粉红色球形肿块脱出 B.排便时有少
简述现代企业人力资源管理各个历史发展阶段的特点。
某电气线路正常工作电流为10A,线路上1s的发热量为1J,即线路上功率损耗为1W
最新回复
(
0
)