How many people died during the school bus accident（）

A. Promoting innovative, environmentally sustainable transportation.
B. Removing barriers to trade and investment.
C. Enhancing the regulation on the APEC economies.
D. Strengthening regional integration.

A. what you eat can greatly affect your health.
B. forty percent of cancer is caused by problems related to food.
C. researchers have known about the potential danger of food additives for many years.
D. most of us unknowingly eat some harmful artificial food additives.