题型：问答题 短文改错（每小题1分，共10分）It was fine in April 8, 1994. That day all the students 小题1:___________in our class went to suburb of our city to plant trees. 小题2:___________On arrive at the planting place at 8 o'clock the 小题3:___________teacher asked every of us to plant 5 trees at least. 小题4:___________Then we set out digging, planting and watering. 小题5:___________All of us were going all out to finish our task, afraid 小题6:___________of being fallen behind. Between us, our monitor set 小题7:___________a good example for us. In spite of his illness, he 小题8:___________accepted his task and finished it ahead of the time. 小题9:___________Then he went on to help others without a few rest. 小题10:___________After work, we were wet all over, but looked at the lines of the young trees, we smiled pleasantly. 查看答案
题型：问答题 患者，女性，67岁，单位体检时发现血压升高，180/110mmHg，血常规提示Hb80g/L，BUN27.48mmol/L，Cr504.2μmol/L，诊断为慢性肾衰竭，引起该患者贫血最重要的原因是（）A.铁的摄入减少B.毒素抑制骨髓造血C.毒素使红细胞寿命缩短D.叶酸缺乏E.红细胞生成素减少 查看答案