著名的“4C”理论，要求企划创意优先考虑消费者的（）。
A.注意力
B.识别性
C.可信性
D.需求性
参考答案：D
The manager was concerned to hear that two of his trusted workers ________.[ ]
A. will leave
B. are leaving
C. have left
D. were leaving
对于catch子句的排列，下列说法正确的是A)父类在前，子类在后B)父类在后，子类在前C)有继承关系的异常不能在同一个try程序段内D)先有子类，其他如何安排都无关
