殡葬具有哪些社会功能?
参考答案:
(1)回归功能;
(2)悼念功能;
(3)慰藉功能;
(4)教育功能;
(5)文化功能。
— How can you finish the work on time?
— ________.
A.By working with friends
B.By working for friends
C.To ask the teachers
D.To read a lot of books
一般采用哪种方法求采油指数()
A.压力恢复
B.压力降落
C.稳定试井
D.等时试井