当日错账冲正中，如果是因系统或打印机故障，导致开立的存单、存折、开户证实书未打印或打印不合适，对开立的凭证进行冲正。（）
参考答案：错
It was not until I was injured in a car accident ______ the real American society．
A．that I found out
B．when I found out
C．did I find out
D．that did I find out
对Ⅰ型呼吸衰竭描述不正确的是（）
A.PaO2小于60mmHg
B.PaO2等于60mmHg
C.PaCO2大于50mmHg
D.PaCO2减低
E.PaCO2正常
