认识的客体具有( )。
A.对象性
B.意识性
C.客观性
D.社会历史性
参考答案:A,C,D
已知:ΔABC中DF//AC,EF//AB,AF平分∠BAC
(1) 你能判断四边形ADFE是菱形吗?说明理由。
(2) ΔABC满足什麽条件时,四边形ADFE是正方形?
It is not how much we learn but how much we understand ______ benefits us so much in our daily life.
A.which
B.that
C.what
D.who