It         long before we         the result of the experiment. [ ]

A.will not be;will know

B.is;will know

C.will not be;know

D.is;know

患者，女，59岁。因支气管哮喘发作急诊入院，护士治疗时，未按操作要求，快速静脉推注某药后，患者出现头晕、心悸、血压剧降、严重的心律失常、抽搐，此药物可能是

A．舒喘灵
B．葡萄糖酸钙
C．青霉素
D．氨茶碱
E．色甘酸钠