单项选择题A. He saw many lakes. B. He saw many mountains. C. He saw different kinds of plants. D. He saw the flat land and even nothing for miles.
单项选择题A. Women should be the subject of medical research as men.B. Medical research has always considered sex as one element.C. Women and men are the same in the likelihood of getting sick.D. Doctors can use the same medical treatments to both women and men.