等价划分测试方案属于______。
A．黑盒测试 B．玻璃箱测试 C．单元测试 D．错误推测
参考答案：A
解析： 等价类划分是黑盒测试的一种技术。
— You didn't expect to see us, did you?
— _____. [ ]
A. No, I don't know you were coming today
B. Yes, I hadn't known you were coming today
C. No, I didn't know you were coming today
D. Yes, I won't know you were coming today
