填空题 Questions 21-24

单选题 Which is TRUE according to NHTSA's figures?
【正确答案】 A
【答案解析】
单选题 Which of the following statements about vehicle's safety is TRUE?
【正确答案】 A
【答案解析】
单选题 What disturb(s) drivers most in America?
【正确答案】 B
【答案解析】
单选题 Which of the following statements is TRUE?
【正确答案】 C
【答案解析】