【单选题】According to the passage, Americans tend to ignore the rest of the world because ______.
A.
they are too proud of themselves
B.
they are not interested in other countries
C.
they are too busy to learn about other countries
D.
their country does not have many neighboring nations
【简答题】抗精神病药按其结构可分为 , ,二并苯氮杂卓类,丁酰苯类,二苯丁基哌叮类和苯甲酰胺类。
【单选题】According to the passage, Americans tend to ignore the rest of the world because______.
A.
they are not interested in other countries
B.
they are too proud of themselves
C.
their country does not have many neighboring nations
D.
they are too busy to learn about other countries
【简答题】导游服务的原则是:()的原则,()原则,()原则,()原则。
【简答题】导游服务的原则是“()”原则、()原则和规范化服务于个性化服务相结合原则。