差动矫正技术所谓的差动牙移动方式,是指()
A.整体牙移动
B.倾斜移动
C.冠先倾斜移动,根再直立
D.根先倾斜移动,冠再直立
E.冠根同
参考答案:C
First impressions are the most lasting. After all, you never get _____ second chance to make _____ first
impression.[ ]
A. a; the
B. the; the
C. a; a
D. the; a
为治下元虚冷,虚阳上浮之要药的是
A.川乌 B.羚羊角 C.车前子 D.大黄 E.灶心土