All the doctors in the hospital insisted that he ___________ badly wounded and that he ______ at once. [ ]

A. was; be operated on

B. should be; be operated on

C. were; must be operated on

D. was; should be operated

剖分式滑动轴承上、下轴瓦与轴承座盖装配时应使()与座孔接触良好。

A、轴瓦 

B、轴轻 

C、轴瓦背 

D、轴瓦面