When ______ about the secret of his success, Steven Spielberg said that he owes much of his success and happiness ________ his wife and children.

A．asking; to

B．asked; in

C．asked; to

D．asked; about

黑盒测试法是根据软件产品的功能设计规格说明书，通过运行程序进行测试，证实每个已经实现的功能是否符合设计要求。如果某产品的文本编辑框允许输入1～255个字符，采用______测试方法，其测试数据为：0个字符、1个字符、255个字符和256个字符。

A．等价类划分
B．边界值分析
C．比较测试
D．正交数组测试