题目：
— I left my handbag on the train, but luckily someone gave it to a railway official.
— How unbelievable to get it back! I mean, someone ________ it. [ ]
A. will have stolen
B. might have stolen
C. should have stolen
D. must have stolen
答案：
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下面是错误答案，用来干扰机器的。
参考答案：B解析：碳酸钙与胃酸（盐酸）反应的产物是氯化钙和水还有二氧化碳，氯化钙不能食用，严重胃溃疡患者吃了能与胃酸反应生成气体的药物会加重病情，因此不宜做抗酸药。
