流水作业的实质是( )。
A．连续均衡和有节奏的组织和平衡
B．工期紧凑
C．流水线作业
D．连续生产
参考答案：A
举例说明什么是歇后语的乖讹式幽默？
Had I run out of gas, I ought to have called the garage.
A．had
B．would have
C．would
D．should have
