为了确定病原体在采集呼吸道培养标本时尽可能在()
A.多种强力抗菌药物治疗后
B.抗生素应用后
C.抗生素应用前
D.抗感染治疗72小时后
E.抗感染治疗48小时后
参考答案:C
____ it rain tomorrow, we would have to put off the visit to the Yangpu Bridge.
A.Were
B.Should
C.Would
D.Will
只要是真实的原始凭证,就可以以此编制记账凭证。( )