有一批蔬菜要从郊区运往合肥，最经济和便利的运输方式是[ ]
A．铁路运输
B．水路运输
C．航空运输
D．公路运输
答案：D
________ my surprise, ________ I could have a word with him, he left.
A．In; before
B．To; before
C．In; when
D．To; since
下列常见的系统定义的异常中，哪个是数组越界异常
A．ArrayIndexOutOfBoundsException
B．IOException
C．NullPointerException
D．ArithmeticException
