根据生态因子的稳定性程度可把生态因子分为稳定因子和( )
A．气候因子 B．地形因子C．外来因子 D．变动因子
参考答案：D
_________surprises us most is that she doesn’t even know _________the difference between the two lies.
A．What; where
B．All; which
C．What; that
D．That; where
下列哪些编码不是湖南的省码代号（）。
A.41
B.42
C.43
D.44
