x线摄影放大率在数值上等于
A. 肢体长度与影像长度之比
B. 肢-片距与焦-肢距之比
C. 焦-片距与焦-肢距之比
D. 焦-片距与肢-片距之比
E. 焦-肢距与肢-片距之比
What do you guess Aristotle was
A man who eared much for friendship.
B. A wise man.
C. A philosopher.
Which chapter of the book is likely to contain information on how far birds can fly
A. Chapter Ⅴ
B. Chapter Ⅲ
Chapter Ⅷ
关于蜜丸的叙述错误的是
A. 是以炼蜜为黏合剂制备的丸剂
B. 大蜜丸是指重量在5g以上者
C. 多用于镇咳祛痰药、补中益气药
D. 传统制备方法一般为塑制法
E. 服用剂量大,微生物限度易超标