the social impact of tourism is usually permanent with little or no opportunity to reverse the change once it has taken place.（ ）

判断题

the social impact of tourism is usually permanent with little or no opportunity to reverse the change once it has taken place.（ ）

答案解析

单选题

Which of the following is not one of the categories of factors that reduce the impact of leadership?

答案解析

单选题

Of the various aircraft icing, the one that has the greatest impact on flight is _.

答案解析

单选题

______the farm subsidies, the built-in costs of growing crops have a bigger impact on the price of staples.

答案解析

多选题

2-18. The design of the museum has to ________ all ages and social groups.（ ）

答案解析