题目

可以检验乙醇中是否含有水的试剂是                                 （    ） A．无水硫酸铜     B．生石灰     C．金属钠     D．胆矾 答案：A -----I just heard that the tickets for tonight’s show have been sold out. -----Oh no! ______.A．I was looking forward to thatB．It doesn’t matterC．I know it already 　D．It’s not at all interesting