Was it through Mary , ____ was working at a high school , _____ you get to know Tom ?

A．who, who

B．that, which

C．who, that

D．who, which

关于抗消化性溃疡药

宜在餐后1～2h服用，对习惯性便秘者不宜使用的是

A．组胺H₂受体阻断剂
B．抗酸药
C．硫糖铝
D．西咪替丁
E．铋剂