在资源管理器中选择()菜单中的查找命令，可以进行文件或文件夹查找。

A．文件

B．查看

C．编辑

D．工具

Black-box and white-box testing method ale often used in software testing phase, in which, the white-box is mainly used to test software's (73) .

A．external function of a program

B．reasonableness of structure

C．internal logic of a program

D．correctness of a program