Java语言最初是面向( )应用领域而设计的。
A．CAD
B．工业
C．Internet
D．消费类电子产品
参考答案：D
农田生态系统中的生物因素有_____________，非生物因素有_____________。
He has been playing all afternoon ________ getting on with his work.[ ]
A. other than
B. more than
C. rather than
D. less than
