从方框中选择合适的选项完成对话。 

A:       1             

B: Yes. Let me make it for you.    

A: OK.      2             

B: Oh, only one. And we need honey and bananas.    

A:       3            

B: About two teaspoons.    

A:      4              

B: Two.     

A:      5           

B: First, we cut up the apple. Next we peel the bananas. Then we cut up the bananas. Finally mix them

    all up.

立杆接长，顶层顶步可采用搭接，应采用不少于两个旋转扣件固定，端部扣件盖板的边缘至杆端距离不应小于（）。

A.30mm

B.50mm

C.100mm

D.200mm