Without proper __1________(plan), tourism can cause problems. For example, too many tourists can crowd public places __2_________ are also enjoyed by the inhabitants(居民) of a country. If tourism creates too much traffic, the inhabitants will become __3________ (annoy) and unhappy. They begin to dislike tourists __4_______ to treat them impolitely. They forget how much tourism can help the country’s economy. __5_________ is important to think about the people of a destination country and ___6________ tourism affects them. Tourism should help __7________ country keep the customs and beauty that attracts tourists. Tourism should also advance the wealth and ___8_______ (happy) of local inhabitants.

Too much tourism can be a problem. If tourism __9_________ (grow) too quickly, people must leave other jobs to work __10________ the tourism industry. This means that other parts of the country’s economy can suffer.

只有已经审核过的材料采购订单才能作为正式的采购订单供以后使用和参照。( )