H1受体拮抗药对下列哪种变态反应疾病最有效（）
A.过敏性休克
B.支气管哮喘
C.过敏性皮疹
D.风湿热
E.过敏性结肠炎
参考答案：C
There is no doubt the boxes were then put on a train for Konigsberg, was at that time a German city on the Baltic Sea.
A．whether, which
B．that, where
C．that, that
D．that, which
流过10K电阻器的电流是1.2mA，则该电阻器两端的电压是（）。
A、12KV
B、1.2KV
C、12V
D、12mV
