用下列单词的适当形式填空。

strike, beat, hit 

1. The criminal gang _____ the man so severely that he almost died.

2. I left immediately after the clock _____ twelve.

3. _____ while the iron is hot.

4. What _____ me was their enthusiasm for work.

从企业总体结构来看，部门的横向结构设计方法（）。

A.按时序划分法

B.自上而下法

C.自下而上法

D.业务流程法

E.按地区划分法