易受光线及湿度影响的维生素是
A．维生素K片剂B．维生素B6片剂C．维生素A滴剂D．维生素D2注射剂E．维生素B12注射剂
参考答案：B
用所给单词的适当形式填空。
1. Linda is _____ (athletic) than me. She plays sports every day.
2. That must be a lot more fun than _____ (take) a subway.
3. There are two basketball _____ (match) on CCTV-5 today.
4. Chinese medicine is very popular in some _____ (west) countries.
5. Li Ming _____ (leave) for Beijing next Sunday.
骨质疏松症的X线表现有()
A．呈鱼尾状椎体
B．骨皮质变薄
C．骨小梁变细减少
D．椎间隙增宽
E．骨质密度减低
