找平层要求做到具有一定的强度，表面平整光滑，不起皮、不起砂、无开裂、无空鼓，并按设计要求找准排水坡度。( )
参考答案：对
— What will you do next Sunday?
— ____. [ ]
A. I read some books
B. I will read some books
C. I am reading some books
访谈调查法有哪些优点和局限？
