()部分是物业管理法律规范的保证。
A.假定
B.处理
C.制裁
D.法律
参考答案:C
—I called you at seven o’clock last evening, but nobody answered the phone.
—Oh, my husband and I __________ outside.
A. took a walk
B. have taken a walk
C. were taking a walk
逻辑覆盖标准主要用于
A.黑箱测试方法
B.白箱测试方法
C.灰盒测试方法
D.软件验证方法