金破不鸣的病机为
A．风寒犯肺B．虚火灼肺C．肺气不足D．风热袭肺E．燥邪犯肺
参考答案：B
根据首字母填空。
Sarah is my good f____________. She is s____________ than me. We often go to s____________
together. She l____________ English very much. She can s____________ English very well.
切取一段紫背天葵的茎，插入湿润的沙土中．一般在4-10天后，即可生出新根，这种繁殖方法叫（ ）
A．扦插
B．压条
C．嫁接
D．组织培养
