储集层的基本特征（）、（）。
参考答案：孔隙性；渗透性
______ students up to 2, 000 , the school has built another laboratory．
A．As
B．For
C．with
D．Since
John is handsome ______ the scar on his face.
A．although
B．even if
C．instead of
D．despite
