原核生物复制过程中,拓扑异构酶的作用是()。
【单选题】
Think about when a teacher handed out a list of twenty "Past tense" sentences and asked students to discuss and find out the grammatical structures. What is the teacher's grammar teaching method?
A.
Induction.
B.
Presentation.
C.
Consolidation.
D.
Deduction.
参考答案
参考解析
【单选题】
某男,45岁。消渴病史2年,症见头晕耳鸣、腰膝酸软、骨蒸潮热、盗汗遗精。医师以六味地黄丸为治
2年后,患者再来就诊。症见眩晕耳鸣、羞明畏光、迎风流泪、视物昏花。宜选用的成药是
左归丸
右归丸
杞菊地黄丸
大补阴丸
青娥丸