锁骨骨折的好发部位是（）。
A.外1/3段
B.中外1/3交界处
C.中1/3段
D.中内1/3交界处
E.内1/3段
参考答案：B
根据汉意补全单词。
1. st__r__-book (故事书)
2. Ch__nese (汉语)
3. n__tebook (笔记本)
Only after they had discussed the matter for a few hours ______ a decision.
A．they reached
B．did they reach
C．they reach
D．do they reach
