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
2019-02-01
23
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 far away 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://kaotiyun.com/show/kird777K
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
Whatisthemanlookingfor?
HaekervisitinghisfriendDr.smith61.______afteraEuropeantour.Hewasreadingbookon
MostfamiliesinChinahopedtheirsinglechildrenwill1.______haveahappyfuture,sotheyareverystrict
MostfamiliesinChinahopedtheirsinglechildrenwill1.______haveahappyfuture,sotheyareverystrict
Theworldisnotonlyhungry,butalsothirstyforwater.Thismayseemstrangetoyou,sincenearly75percentoftheearth’ss
Inreadingmathematicsproblems,youshouldfirstreadtounderstandthegeneralmeaningoftheproblemandquestiontobeanswe
Myaunt______arestaurantinAmerica.
Whatistheprobablerelationshipbetweenthetwospeakers?
Forty-thousandoftheworld’syoungchildrendieeveryday.Thisis15millionayear.Manyofthesedeathscanbeprevented.I
WheredoesKirstylive?
随机试题
与二氯氧锆甲醇液呈鲜黄色,而后加入枸橼酸甲醇液黄色也不褪的黄酮类化合物分子结构中含有
关于非公开募集基金的说法,下列哪些选项是正确的?
下列进度计划中,可直接用于组织施工作业的计划是()。[2011年真题]
向Excel工作表的任一单元格输入内容后,都必须确认后才认可。确认的方法是()。
对现金进行盘点时,()必须在场。
某企业注册资本100万元,盈余公积80万元,企业用盈余公积转增资本的最高限为()。
在一个实验中,对蓝光信号灯按A键,对绿光信号灯按B键,对红光信号灯按C键,对白光信号灯按D键,共四个刺激和四个对应的反应,那么记录到的反应时是()
《学记》所阐述的循序渐进教学原则,早在孟轲就已提出,他将其阐述为()。
甲使用破坏性手段盗窃,同时触犯盗窃罪和故意毁坏财物罪。甲的犯罪属于
TheresidentsofCalifornia’sSantaMonicaBayhavesomerathernoisyneighbors—andthey’renothappyaboutit.Thatistheconc
最新回复
(
0
)