能迅速中和胃中过剩的胃液,减轻疼痛,但作用时间较短的药物是
A.雷尼替丁B.碳酸氢钠C.普鲁卡因D.庆大霉素E.氧化镁
参考答案:B
在社交活动中,头发的要求有哪些?
Can you tell me ________ tomorrow?[ ]
A. where they will fly to
B. what will he do
C. when he arrived
D. how did he go there