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
Every year landslides (滑坡) cause 25 to 50 deaths and $1.5 billion in damage in the United States. They account for 15 percent of
Every year landslides (滑坡) cause 25 to 50 deaths and $1.5 billion in damage in the United States. They account for 15 percent of
admin
2023-03-13
41
问题
Every year landslides (滑坡) cause 25 to 50 deaths and $1.5 billion in damage in the United States. They account for 15 percent of the deaths from natural disasters in Europe. And there was ever a single
event
killed more than 200 people in the Philippines. Sending workers to stabilize mountainsides using steel bars and cement (水泥) can help prevent disasters, but it introduces new difficulties. Shaking drills produce harmful dust and loosen heavy, dangerous debris (岩屑). "It’ s quite a risky job," says Giorgio Pezzuto of D’ Appolonia, an engineering company in Italy.
D’Appolonia, working with eight other companies, may have an answer; a three-ton robot called Roboclimber. "The idea is to operate a machine far away that can drill without a human being on board," says Pezzuto, the manager for the project, which is supported by the European Commission. Engineers claim that the machine will be faster and cheaper than manual labor. The robot, a large radio-controlled four-legged mechanical spider, has cost at least $ 2 million so far. The final product should be able to climb unstable mountainsides, drill holes, insert bars and cement, and collect data on the stability. Testing should begin in May.
The biggest advantage of this product is that________.
选项
A、it will be faster and cheaper than manual labor
B、it can climb mountainsides, drill holes, insert bars and cement
C、it can collect data on the slope’ s stability
D、it can drill without a human being on board
答案
D
解析
细节判断题。从第二段The idea is to operate a machine faraway that can drill without,a human being on board一句以及第一段讲滑坡人工抢险的危险,可知这种产品的最大优点就是无人操作的安全性。
转载请注明原文地址:https://jikaoti.com/ti/q0oiFFFM
本试题收录于:
公共英语二级笔试题库公共英语(PETS)分类
0
公共英语二级笔试
公共英语(PETS)
相关试题推荐
Forthoseseekingtohelptheworst-offinpoorcountries,themobilephonehasbeenamagicwand.Mobile-moneyaccountshavehe
Thinnerisn’talwaysbetter.Anumberofstudieshave【C1】________thatnormal-weightpeopleareinfactathigherriskofsomedi
Thinnerisn’talwaysbetter.Anumberofstudieshave【C1】________thatnormal-weightpeopleareinfactathigherriskofsomedi
TheUnitedStatesiswidelyrecognizedtohaveaprivateeconomybecauseprivatelyownedbusinessesplay【C1】________roles.TheA
TheUnitedStatesiswidelyrecognizedtohaveaprivateeconomybecauseprivatelyownedbusinessesplay【C1】________roles.TheA
TheUnitedStatesiswidelyrecognizedtohaveaprivateeconomybecauseprivatelyownedbusinessesplay【C1】________roles.TheA
TheUnitedStatesiswidelyrecognizedtohaveaprivateeconomybecauseprivatelyownedbusinessesplay【C1】________roles.TheA
TheUnitedStatesiswidelyrecognizedtohaveaprivateeconomybecauseprivatelyownedbusinessesplay【C1】________roles.TheA
Peekthroughtheinspectionwindowsofthenearly100three-dimensional(3D)printersquietlymakingthingsatRedEye,acompany
Peekthroughtheinspectionwindowsofthenearly100three-dimensional(3D)printersquietlymakingthingsatRedEye,acompany
随机试题
实践中,通常采用()来确定不同债券的违约风险大小。
1985年我国学者编制了生活事件评定量表,其中LCU分值最高的生活事件是
确诊肾结核下列哪项最可靠
男,28岁,以前精神正常,到某地出差刚下火车,突然感到要爆发战争了,因为好多人都往出口处跑。最可能的症状是
为了加强建设项目安全设施“三同时”的监管工作,各级安全生产监督管理部门实行()的原则。
要规范工程建设参与各方的建设行为,就要建立有效的约束机制,其根本目的是( )。
H公司是一个高成长的公司,目前每股价格为20元,每股股利为1元,股利预期增长率为6%。公司现在急需筹集资金5000万元,有以下三个备选方案:方案1:按照目前市价增发股票200万股。方案2:平价发行10年期的长期债券。目前新发行的10年期政府债券的
你有没有担任过学生干部?
在软件生存周期中,能准确确定软件系统必须做什么和必须具备哪些功能的阶段是()。
•Lookatthechartbelow.ItshowsgrowthofChina’sGDP,exportandimportvolumes.•Whichyeardoeseachsentence(11-15)
最新回复
(
0
)