以下哪项属于人的生理需要
A.亲合的需要
B.信息刺激的需要
C.避免伤害的需要
D.社会赞许的需要
E.好奇的需要
参考答案:C
We were deeply impressed by the schools and teachers________ we had visited there.
A.where
B.which
C.that
D.who
目前已知植物体内的天然激素有()、()、()、()、()