题目

 According to the driver’s explanation, it was not he but the man crossing the street that        for the accident.  A. was blamed B. was to blame   C. was being blamed     D. was to be blamed 答案：B国际卫生组织向世界各国推荐使用中国传统的“铁锅”，这是因为使用这样的“铁锅”可以补“铁”，从而减少“缺铁性贫血”的发生．这里所补的“铁”是指（ ）A．铁单质B．铁元素C．铁离子D．铁原子