消化性溃疡病人为何不宜多饮牛奶
A．可引起胃痛B．含少量脂肪抑制胃酸C．淡牛奶能稀释胃酸D．含蛋白可中和胃酸E．含钙可刺激胃酸增加
参考答案：E
______ it rained heavily, no one in our class was late for school.
A．Because
B．Even though
C．As soon as
D．Until
