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【单选题】
以下属于心理、生理性危险源的是( )。
A.
操作失误
B.
监护错误
C.
负荷超限
D.
致害动物
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参考答案:
举一反三
【单选题】在工艺流程图中,某仪表的位号为 TIC-203 ,其中字母 I 表示( )。
A.
电流
B.
报警
C.
记录
D.
指示
【单选题】在工艺流程图中,某仪表的位号为PIC-101,其中字母C表示________。
A.
指示
B.
记录
C.
控制
D.
电导率
【单选题】在工艺流程图中,某仪表的位号为PIC-101,其中字母I表示________。
A.
指示
B.
控制
C.
记录
D.
电导率
【简答题】群的单位元是 的,每个元素的逆元素是 的.
【简答题】The first accurate measurements of the properties of gases at high pressures were made by E.H. Amagat in France between 1869 and 1893. Before developing the dead-weight gauge, he worked in a mine shaf...
【判断题】干砌挡土墙可不设沉降缝和伸缩缝。 ( )
A.
正确
B.
错误
【简答题】六选五(A) 根据短文内容,从下框的 A ~ F 选项中选出能概括每一段主题的最佳选项 , A. Real winners of tourism B. Negative effects of tourism C. Growing tourism in the world D. Developing tourism with caution E. Benefits to the locals fro...
【简答题】下列的代数系统(G,*)哪些构成群?如是群给出其单位元以及每个元素的逆元素.
【多选题】根据短文内容,从下框的 A ~ F 选项中选出能概括每一段主题的最佳选项 ,
A.
Real winners of tourism
B.
Negative effects of tourism
C.
Growing tourism in the world
D.
Developing tourism with caution
E.
Benefits to the locals from tourism
F.
Tourism problems and possible solutions 1. ______ On the Mediterranean island of Majorca in Spain , the locals are angry. Too late. In the last quarter of the 20th century , they obtained profit from foreign visitors wanting to buy up property on their beautiful island. Suddenly it occurred to Majorcans that the island no longer belonged to them. Its 630,000 inhabitants (居民) are increasingly convinced that the 14 million visitors a year are far too much of a good thing. Water is in short supply , pollution is worsening , and there is no affordable housing left for them to buy. 2. ______ Tourism is the world’s largest and fastest growing industry. In 1950,25 million people traveled abroad ; last year it was 750 million. The World Tourism Organization predicts that 1.6 billion people , by 2020 , will travel each year , spending over two trillion (万亿) US dollars. 3. ______ The host country may not see many benefits. In Thailand, 60% of the $4 billion annual tourism income leaves the country. Tourists arranged by travel companies tend to stay at big foreign owned hotels , buying few local products. Mass tourism (团队旅游) usually leaves little money inside the country and most of the money goes to the airlines , the tour operators , and the foreign hotel owners , who are the final winners of tourism. 4. ______ These days the industry’s most urgent question may be how to control the flow of tourists. A typical example of this is Italy , where great cultural centers like Florence and Venice can’t handle all the tourists they get every summer. In Florence , its half million inhabitants have to live with the pollution , traffic jam , and crime caused by 11 million visitors a year. Now there’s talk about how to solve these problems , like raising hotel taxes , or even charging admission to some public squares. The idea is to discourage at least some visitors , as well as to pay for cleaning up the mess. 5. ______ For many poorer countries , tourism may still offer the best hope for development. The Vietnamese are doing their best to open up their country. Libya has paid $1 million for a study. They all want tourists. Yet if something isn’t done , tourism seems certain to become the victim of its own success. Its effect on the environment is a major concern. For this reason , tourist organizations need to have second thoughts about what exactly they are trying to sell.
【简答题】根据短文内容,从下框的 A ~ F 选项中选出能概括每一段主题的最佳选项 , A. Real winners of tourism B. Negative effects of tourism C. Growing tourism in the world D. Developing tourism with caution E. Benefits to the locals from touri...
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【多选题】根据短文内容,从下框的 A ~ F 选项中选出能概括每一段主题的最佳选项 ,
A.
Real winners of tourism
B.
Negative effects of tourism
C.
Growing tourism in the world
D.
Developing tourism with caution
E.
Benefits to the locals from tourism
F.
Tourism problems and possible solutions 1. ______ On the Mediterranean island of Majorca in Spain , the locals are angry. Too late. In the last quarter of the 20th century , they obtained profit from foreign visitors wanting to buy up property on their beautiful island. Suddenly it occurred to Majorcans that the island no longer belonged to them. Its 630,000 inhabitants (居民) are increasingly convinced that the 14 million visitors a year are far too much of a good thing. Water is in short supply , pollution is worsening , and there is no affordable housing left for them to buy. 2. ______ Tourism is the world’s largest and fastest growing industry. In 1950,25 million people traveled abroad ; last year it was 750 million. The World Tourism Organization predicts that 1.6 billion people , by 2020 , will travel each year , spending over two trillion (万亿) US dollars. 3. ______ The host country may not see many benefits. In Thailand, 60% of the $4 billion annual tourism income leaves the country. Tourists arranged by travel companies tend to stay at big foreign owned hotels , buying few local products. Mass tourism (团队旅游) usually leaves little money inside the country and most of the money goes to the airlines , the tour operators , and the foreign hotel owners , who are the final winners of tourism. 4. ______ These days the industry’s most urgent question may be how to control the flow of tourists. A typical example of this is Italy , where great cultural centers like Florence and Venice can’t handle all the tourists they get every summer. In Florence , its half million inhabitants have to live with the pollution , traffic jam , and crime caused by 11 million visitors a year. Now there’s talk about how to solve these problems , like raising hotel taxes , or even charging admission to some public squares. The idea is to discourage at least some visitors , as well as to pay for cleaning up the mess. 5. ______ For many poorer countries , tourism may still offer the best hope for development. The Vietnamese are doing their best to open up their country. Libya has paid $1 million for a study. They all want tourists. Yet if something isn’t done , tourism seems certain to become the victim of its own success. Its effect on the environment is a major concern. For this reason , tourist organizations need to have second thoughts about what exactly they are trying to sell.
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