16. Paragraph➊17. Paragraph❷

18. Paragraph❸

19. Paragraph❹

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A. Main Results of Recent Researches

B. Difference between Genetic and Observed Intelligence

C. Effect of Environment on Intelligence

D. Intelligence and Achievement

E. Impact on School Education

F. A Changed View of Intelligence

The first attempt made by European people to settle down permanently in North America occurred in the 1580s.(  )

• A、Right
• B、Wrong
• C、Not mentioned

The first settlers in Virginia were all slaves mixed with men and women.(  )

• A、 Right
• B、Wrong
• C、Not mentioned