The little girl was allowed to go swimming ____ she must keep herself near her father.

A．when

B．in case

C．in order that

D．on condition that

______类型是数字数据类型的特殊类型，多用于存储货币值，在输入数据时，不必键入人民币符号和千位分隔符，系统会自动将其显示，并在其后面添加两位小数。如果小数部分多于两位时，系统会对数据进行______。其最多可存储8个字节。