皮皮学,免费搜题
登录
logo - 刷刷题
搜题
【简答题】
Every year landslides cause 25 to 50 deaths and $2 billion in damage in the United States. And in December, a single event killed more than 2000 people in the Philippines. Sending workers to stabilize mountainsides using steel bars can help a lot, but it introduces new difficulties because of dust and loosen heavy, dangerous debris from the work. “It’s a quite dangerous job,” says Giorgio Pezzuto of D’ Appolonia, working with eight other companies. Now there may be an answer: a three-ton robot called Roboclimber. “The idea is to operate a machine far away that can do the stabilizing job without a human being near,”says Pezzuto, manager for the project, which is supported by a European organization. Engineers say that the machine will be faster and cheaper than manual labor. The robot, a large radio-controlled four-legged spider, has cost at least $2 million so far. It should be able to climb mountainsides, drill holes and insert steel bars there. Testing should begin in May. 小题1:The underlined word “event” refers to_____ A.earthquake B.debris C.dust D.landslide 小题2:The purpose in writing this text is _____ A.to tell people how serious the damage caused by landslides is B.to tell people that sending workers to stabilize mountainsides is a dangerous job C.to show people how to use a new robot D.to introduce a new robot that can be used to stabilize mountainsides 小题3:What does the robot look like? A.human being B.spider C.steel bar D.a drill 小题4:A landslides cause _____________in damage in the United States Every year . A.25 to 50 deaths B.more than 2000 people died C.$2 billion D.both A and C 小题5:The biggest advantage of this product is that____ A.it will be faster and cheaper than manual labor B.it can climb mountainsides, drill holes and insert steel bars there. C.it can do the stabilizing job without human beings near D.it is like a spider
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
微信内点击右上角“…”即可分享
反馈
参考答案:
举一反三
【单选题】引起资产和负债同时增加的经济业务是
A.
以银行存款购买材料
B.
向银行取得借款,存入银行账户
C.
以无形资产向外单位投资
D.
以银行存款偿还应付账款
【单选题】除专门测量高压的仪表外,其他仪表均不得直接测量高压。测量用的连接电流回路的导线截面积要与被测回路的电流相适应;连接电压回路的导线截面积不得小于 ( ) mm2。
A.
1
B.
1.5
C.
2
D.
2.5
【单选题】An economic profit of zero implies:
A.
normal profit.
B.
the firm is covering both explicit and implicit costs.
C.
the firm's revenues are sufficient to compensate the money and time that the owners put into the business.
D.
all of the above
【单选题】引起资产和负债同时增加的经济业务是
A.
用银行存款购买材料
B.
向银行取得借款,存入银行存款户
C.
用无形资产向外单位投资
D.
用银行存款偿还应付账款
【单选题】When marginal profit equals zero:
A.
the firm can increase profits by increasing output.
B.
the firm can increase profits by decreasing output.
C.
marginal revenue equals average revenue.
D.
profit is maximized.
【单选题】引起资产和负债同时增加的经济业务是
A.
用银行存款购买材料
B.
向银行借款存入银行
C.
将无形资产向外单位投资
D.
用银行存款偿还应付账款
【单选题】布置基础构件时,需要将一层的()构件复制到基础层。
A.
墙、梁、板、柱
B.
梁、板、柱
C.
板、柱
D.
墙、柱
【简答题】长期零经济利润条件(long-run zero-profit condition)
【单选题】引起资产和负债同时增加的经济业务是
A.
以银行存款购买材料
B.
向银行取得借款,存入银行存款户
C.
以无形资产向外单位投资
D.
以银行存款偿还应付账款
【单选题】When a profit-maximizing firm in a competitive market has zero economic profit, accounting profit
A.
is negative (accounting losses).
B.
is positive.
C.
is also zero.
D.
could be positive, negative or zero.
相关题目:
参考解析:
知识点:
题目纠错 0
发布
创建自己的小题库 - 刷刷题