单项选择题
A. By forcing them farming. B. By .affecting the quality of soils. C. By adding chemicals and polluting the waterways. D. By ’affecting the environments they live in.
A.working in a paper factory. B.working in a youth club. C.looking after his brother and sister. D.looking after his young friends.
A. It has much lower production. B. It has less starch than white rice. C. It is shorter in releasing sugar than white rice. D. It is less available to people in poor countries.