仓库内应设架子，使气瓶（），空的气瓶可以平放堆叠，但每一层都应垫有木制或金属制的型板，堆叠高度不准超过（）m。
参考答案：垂直立放；1.5
采用网上定价发行方式的，主承销商在( )设立股票发行专户和申购资金专户。
A．银行
B．主承销商自己的营业部的账户
C．发行公司
D．证券交易所
She was just about to explain ______ she hadn't passed her maths test chiefly out of carelessness ______ her uncle came.
A. her mother when B. to her mother why thatC. her mother that when D. to her mother that when
