骨质琉松症是一种以（）为特征的代谢性骨病。
参考答案：骨量减少
—Did you remember to give Mary the money you owed her?
—Yes, I gave it to her _______ I saw her.
A．while
B．the moment
C．suddenly
D．at the moment
A．E=，m=0
B．E=，m=
C．E=，m=0
D．E=，m=
，m=0
，m=
，m=0
，m=