沉积岩描述的基本内容包括（）和（）、（）和（）。
参考答案：层理类型；特性；层面构造；接触关系
The girl glanced over her shoulder and found herself ______ by a young man in black. [ ]
A. was followed
B. followed
C. following
D. had been followed
加强医德规范建设有何重大意义？
