---Jason, you need to refresh yourself with a cup of coffee.

--- Yeah, I went to bed very late last night, ________, early this morning.

A, rather than          B. what’s more    

C. or rather            D. what’s worse

离心泵一级保养时，要检查前后密封填料及密封填料压盖，渗漏每分钟不超过（）滴。

A、30

B、40

C、50

D、60