Questions 5 to 7 are bassed on the news report you have just heard 阶段性测试一新闻3.mp3:
A.
The biggest increase in nicotine content tended to be in brands young smokers like
B.
Big tobacco companies were frank with their customers about the hazards of somking
C.
Brands which contain higher nicotine content were found to be much more popular
D.
Tobacco companies refused to discusse the detailed nicotine content of their products