手术部位感染的常见诱因（）。
A.留置导尿管
B.气管切开
C.两者均是
D.两者均否
参考答案：D
I was discharged in 1947 and, motivated by intellectual curiosity, decided upon a career in medical research at a time when such a choice was not ______.
A．fashionable
B．adaptable
C．welcome
D．warmhearted
下列不属于商业银行理财业务对客户限制性条件的是( )。
A．财产准入门槛 B．客户用本人实名C．客户提交有效合理的收入证明 D．能够提交合法有效的身份证明
