下列关于推理情境阐述正确的是()
A.肯定前件会导致正确的结论
B.肯定后件会导致不正确的结论
C.否定前件会导致不正确的结论
D.否定后件会导致不正确的结论
参考答案:A, C
Miss Fang is ______ English teacher. ___ is a good teacher.[ ]
A. our; Her
B. my; Her
C. our; She
D. ours; She
—________ do you wash your hair?
—Once a week. [ ]
A. How often
B. How long
C. How far
D. How