题目

下列物质的实验室存放方法错误的是（    ）     A．氢氟酸存放于塑料试剂瓶中     B．白磷存放于盛有二硫化碳的试剂瓶中     C．金属钾存放于盛有煤油的试剂瓶中     D．浓硝酸存放于棕色试剂瓶中 答案：B 解析:白磷存放于盛水的试剂瓶中。So quickly are science and technology advancing        is a possibility today may be a reality tomorrow. [     ]A. that which       B. that what        C. what        D. which