单项选择题
A. In the early to mid 18th century. B. In the early to mid 19th century. C. In the early 19th century. D. In the early 18th century.
A. Brown rice is better than white rice in reducing Type Two diabetes. B. People in developed countries are more likely to have diabetes. C. Type Two diabetes is relevant to the sugar our body produces. D. Women are less likely to have Type Two diabetes than men.
A. Soil. B. Human population. C. Forest. D. Water.