We know for sure that colonization began at the end of the 15thcentury.( )
A、Right
B、Wrong
C、Not mentioned
16. Paragraph?17. Paragraph?18. Paragraph?19. Paragraph?20. Paragraph? A. Main Results of Recent ResearchesB. Difference between Genetic and Observed IntelligenceC. Effect of Environment on IntelligenceD. Intelligence and AchievementE. Impact on School EducationF. A Changed View of Intelligence
The following are all mentioned as reasons why the airlines arehaving a hard time EXCEPT that .( )
A、the tourist industry is experiencing an all-time low
B、there is no increase in the number of passengers