硝化细菌为（）型细菌，严格要求（）氧；反硝化的重要条件是（）氧。
参考答案：化能自养性细菌；高水平的；氧
属于抗肾小球基底膜抗体性肾炎的是（）
A.链球菌感染后急性肾炎
B.膜性病变为主的肾炎
C.肾小球病变为主的肾炎
D.肺出血肾炎综合征
E.狼疮肾炎
根据句子意思，用所给词的正确形式填空。
小题1:We are _____, we love our country. (China)
小题2:I watch TV ______ a week. (two)
小题3:Many people lose their _____ in the accidents every year. (life)
小题4:That is a townhouse with two ______. (floor)
小题5:There are so many books on the two _______. (shelf)
