纤维素和果胶分别由（）、（）组成。
参考答案：β-1，4-D-葡萄糖、α-1，4-D-半乳糖醛酸
根据句意和首字母提示完成单词。
1. Zhuang Yong won the women's 100-metre f_____ with a time of 54.64 seconds.
2. The girl from Class Two won the 100-mether r_____.
3. It s_____ that Zhuang Yong and Jenny hadfinished at the same time.
4. When, Zhuang Yong won China's first gold inswimming,the Chinese s_____ jumped up anddown,
cheering.
5. It was a very c_____ race.
男性，20岁，夜间骑自行车，头朝下跌于壕沟，四肢活动正常，X线片显示齿状突骨折并脱位，此时在治疗上最先采取的措施是
A．石膏领固定
B．颅骨牵引固定
C．吊带牵引
D．环枕固定术
E．切开复位内固定
