下列说法中,正确的是( )
A:垂直于同一直线的两条直线互相平行
B:垂直于同一平面的两条直线互相平行
C:垂直于同一平面的两个平面互相平行
D:平行于同一平面的两条直线互相平行
函数fx=x+1x-2x>2的最小值为____ .
A. My father is a teacher.
B. I'm very happy.
C. This is Lily's family.
D. My sister is very tall.
E. I am a student.