为了控制藻类在原水输管和水厂构筑物中过度繁殖,并减小致突变物质的产生,不可采用( )预氧化。
A.二氧化氯
B.氯
C.臭氧
D.高锰酸钾
参考答案:B
根据句意和汉语注释,写出单词的正确形式。
1. Dragon Boat festival is a _________ (特别的) festival for the Chinese people.
2. Mary likes doing morning _________ (锻炼) with her classmates at school.
3. My father _________ (不喜欢) cooking but my mother likes cooking very much.
4. They were very _________ (兴奋的) when they see Liu Xiang on the playground.
5. Here is some _________ (新闻) about your new school. Please read carefully.
某女,19岁,未婚。月经先期、经期延长已2年余。肛检:外阴发育正常,宫体较小。诊为“功血”。曾用激素并服中药治疗3个月无效。前次月经约行50日始止。本次又值经期,已2日,出血淋沥不净,色鲜红,质稍稠,腰膝酸软,头晕耳鸣,口干,苔少,脉细数。此病常用方剂是
A.右归丸B.固本止崩汤C.四物汤合失笑散D.左归丸合二至丸E.保阴煎