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【单选题】
The biggest problem facing Chile as it promotes itself as a tourist destination to be reckoned with is that it is at the end of the earth. It is too far south to be a convenient stop on the way to anywhere else and is much farther than a relatively cheap half-day's flight away from the big tourist markets, unlike Mexico, for example. Chile, therefore, is having to fight hard to attract tourists, to convince travellers that it is worth coming halfway round the world to visit. But it is succeeding, not only in existing markets like the U.S.A. and Western Europe but in new territories, in particular the Far East. Markets closer to home, however, are not being forgotten. More than 50 % of visitors to Chile still come from its nearest neighbour, Argentina, where the cost of living is much higher. Like all South American countries, Chile sees tourism as a valuable earner of foreign currency, although it has been far more serious than most in promoting its image abroad. Relatively stable politically within the region, it has benefited from the problems suffered in other areas. In Peru, guerrilla warfare in recent years has dealt a heavy blow to the tourist industry and fear of street crime in Brazil has reduced the attraction of Rio de Janeiro as a dream destination for foreigners. More than 150,000 people are directly involved in Chile's tourist sector, an industry which earns the country more than US $ 950 million each year. The state-run National Tourism Service, in partnership with a number of private companies, is currently running a worldwide campaign, taking part in trade fairs and international events to attract visitors to Chile. Chile's great strength as a tourist destination is its geographical diversity. From the parched Atacama Desert in the north to the Antarctic snowfields of the south, it is more than 5,000km long. With the Pacific on one side and the Andean mountains on the other, Chile boasts natural attractions. Its beaches are not up to Caribbean standards but resorts such as Vina del Mar are generally clean and unspoilt and have a high standard of services. But the trump card is the Andes mountain range. There are a number of excellent ski resorts within one hour's drive of the capital, Santiago, and the national parks in the south are home to rare animal and plant species. The parks already attract specialist visitors, including mountaineers, who come to climb the technically difficult peaks, and fishermen, lured by the salmon and trout in the region's rivers. However, infrastructural development in these areas is limited. The ski resorts do not have as many lifts as their European counterparts and the poor quality of roads in the south means that only the most determined travellers see the best of the national parks. Air links between Chile and the rest of the world are, at present, relatively poor. While Chile's two largest airlines have extensive networks within South America, they operate only a small number of routes to the United States and Europe, while services to Asia are almostnon-existent. Internal transport links are being improved and luxury hotels are being built in one of its national parks. Nor is development being restricted to the Andes. Easter Island and Chile's Antarctic Territory are also on the list of areas where the Government believes it can create tourist markets. But the rush to open hitherto inaccessible areas to mass tourism is not being welcomed by everyone. Indigenous and environmental groups, including Greenpeace, say that many parts of the Andes will suffer if they become over-developed. There is a genuine fear that areas of Chile will suffer the cultural destruction witnessed in Mexico and European resorts. The policy of opening up Antarctica to tourism is also politically sensitive. Chile already has permanent settlements on the ice and many people see the decision to allow touri
A.
geographical location
B.
guerrilla warfare
C.
political instability
D.
street crime
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举一反三
【多选题】房地产的估价原则包括()。
A.
合法原则
B.
最高最佳使用原则
C.
估价时点原则
D.
替代原则
E.
公平原则
【简答题】若精馏塔塔顶某理论板上气相温度为 t1 ,液相泡点温度为 t2 ;塔底某理论板上气相温度为 t3 ,液相温度为 t4 。请将 4 个温度间关系用 > 、 = 、 > 符号排序 ( ) 。 精馏过程设计时,增大操作压强,则相对挥发度 ,塔顶温度 ,塔底温度 。 (填增大,减小,不变) 一般而言,两组分 A 、 B 的等摩尔逆向扩散体现在 ( ) 单元操作中。
【简答题】若精馏塔塔顶某理论板上气体温度为t1,液相泡点温度为t2;塔底某理论板上气相温度为t3,液相温度为t4。请将4个温度间的关系用〉、═、〈符号顺序排列为( )。
【判断题】路堑是指路基顶面低于原地面的挖方路基,一般常用于山岭区挖方路基。( )
A.
正确
B.
错误
【单选题】一般路堑是指( )。
A.
一般地质条件下,挖方深度不小于20m的路基
B.
般情况下,挖方深度在10m左右的路基
C.
挖方深度小于20m的路基
【单选题】一般路堑是指( )。
A.
一般地质条件下,挖方深度小于20m的路基
B.
一般地质条件下,挖方深度在lOm左右的路基
C.
挖方深度小于20m的路基
D.
/
【判断题】不求导数 , 判断函数 的导数有2个零点。
A.
正确
B.
错误
【单选题】一般路基是指修筑在良好的地质、水文、气候条件下的路基。通常认为一般路基可以结合当地的()、地质情况,直接选用典型横断面图或设计规定。但高填方路堤,深挖方路堑须进行个别论证和验算。
A.
地形
B.
水文
C.
气候
D.
地质
【简答题】(本小题满分12分)已知函数 .( ) (1)若函数 有三个零点 ,且 , ,求函数 的单调区间; (2)若 , ,试问:导函数 在区间(0,2)内是否有零点,并说明理由. (3)在(Ⅱ)的条件下,若导函数 的两个零点之间的距离不小于 ,求 的取值范围.
【单选题】一般路堑是指()。
A.
一般地质条件下,挖方深度小于20m的路基;
B.
一般地质条件下,挖方深度在10m左右的路基;
C.
挖方深度小于20m的路基
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