In Paragraph 11, why did the author cite psychologist Dr. Robert Wests comments？
A. To indicate that selected music may both improve and distract driving.
B. To prove carefully selected music only benefits those in the high risk group.
C. To show that Mantovani benefits young male drivers when they are on the move.
D. To give evidence that it is hard to persuade young male drivers to listen to Mantovani.
查看答案
Why does the student visit the professor？
A. To ask for advice
B. To ask questions
C. To make up for lessons
D. To get his signature
Which of the following is mentioned as an ingredient of a composite？
A. Oil.
B. Resin.
C. Glass.
D. Steel.
What are the two main problems about the computer center？[Clink on 2 answers. ]
A. So many students have to finish their homework on computers.
B. The computer center is closed so early.
C. There are so few computers, and they are always broken.
D. Very few students come back.
Which of the following is NOT mentioned as the factor that contributes to American Dream？
A. The long developed culture.
B. The influence of religion.
C. Enlightenment thinkers.
D. Immigration policy.
微信支付 
支付宝支付