下述哪项是酸碱平衡中反映呼吸性因素的指标（）
A.SB
B.PaO2
C.AG
D.PaCO2
E.BE
参考答案：D
—What happened to the ancient town?
— .
A．It destroyed in the flood
B．The flood was destroying it
C．The flood was destroyed it
D．It was destroyed in the flood
无症状原发型肺结核，治疗选择方案（）
A.异烟肼+利福平，9～12个月
B.异烟肼+乙胺丁醇，6～9个月
C.异烟肼+利福平，12～18个月
D.异烟肼+利福平+乙胺丁醇，6～9个月
E.异烟肼+利福平+乙胺丁醇，12～18个月
