物质生产民俗分为哪几类？
参考答案：
农业民俗，狩猎，游牧和渔业民俗，工匠民俗，商业与交通民俗。
— Is there any hope of saving his life?
— His injuries are extremely serious, but he's expected to ____. [ ]
A. pull in
B. pull through
C. pull up
D. pull over
从所给的四个选项中，选择最合适的一个填入问号处，使之呈现一定的规律性（）
A.选项A
B.选项B
C.选项C
D.选项D
