His wife left him, because he was in such heavy debt _________ he could never __________.

A．as...pay off

B．that… pay back

C．as…pay for

D．that…pay in

戴防眼罩及面罩的应用指征是（）

A.操作时可能发生患者的血液、体液、分泌物等喷溅时

B.近距离接触经飞沫传播的传染患者时

C.为呼吸道传染患者进行气管插管时

D.为呼吸道传染患者进行气管切开时

E.以上都是