会计核算中产生权责发生制和收付实现制两种记账基础的前提是（）。A.会计主体 B.持续

Ⅰ型呼吸衰竭的诊断，下列正确的是（）

A.PaO₂>50mmHg，PaCO₂<50mmHg

B.PaO₂>60mmHg，PaCO₂>50mmHg

C.PaO₂>55mmHg，PaCO₂<30mmHg

D.PaO₂>60mmHg，PaCO₂<50mmHg

E.PaO₂<60mmHg，PaCO₂<40mmHg

—  So, you didn't take his advice?

—  No. _____ his advice, I _____ such a silly mistake. [ ]

A. Were I to take; shouldn't have made  

B. If I had taken; would make

C. Had I taken; wouldn't have made     

D. Have I taken; won't have made

原发性肝癌的首发症状是（）。

A.肝区疼痛

B.上腹饱胀

C.发热

D.黄疸

E.消瘦、乏力

A client with chronic obstructive pulmonary disease (COPD) and cor pulmonale is being prepared for discharge. The nurse should provide which instructions（）

A. "Weigh yourself daily and report a loss of 1 lb in 1 day. "

B. "Eat a high-sodium diet. "

C. "Weigh yourself daily and report a gain of 2 lb in 1 day. "

D. "Maintain bedrest. "

热用沥青胶由石油沥青基料、优质溶剂和复合填充料配制而成。( )