If the mean score for the juniors were known, which of the following could be calculated from the information given?（）I The range of the scores for the seniorsII The median score for the juniorsIII The mean score for the seniors
A．NoneB．I onlyC．III onlyD．I and IIE．II and III
根据下表回答问题。2002年北京市社会消费品零售总额相对于2000年的增幅是（）。
A．9.5%B．10.4%C．19.9%D．20.9%
