十二指肠大 * * 位于
A．十二指肠上部B．十二指肠降部C．十二指肠空肠曲D．结肠左曲E．结肠右曲
参考答案：B
用括号内所给词的适当形式填空。
1. My shoes are worn out, so I must get them ________ (repair).
2. She gave up her job and concentrated on _______ (draw) comies.
3. My parents don't allow me _______ (choose) my own clothes.
4. Teenagers should _______ (allow) to get a part-time job during their spare time.
5. There are some _______ (diffcrent) between them.
企业培育核心能力最主要的方法应是（）。
A、外部购买
B、组建战略联盟
C、利用自身力量
D、合作
