将计算机用于自然语言理解、知识发现，这属于计算机在（）方面的应用。
A.管理和决策
B.数值计算
C.自动控制
D.人工智能
参考答案：D
We may find that learning a foreign language does not have to be ______learning our mother tongue, but can in fact be as easy.
A．twice harder as
B．as twice hard as
C．twice as hard as
D．as twice hard
账务处理子系统，不仅可以直接处理自记账凭证的信息，而且可以接收来自各核算子系统的自动转账凭证。( )
