脾肾阳虚，津液输布障碍，水湿之邪停滞于体内时的舌象为（）。
A.老舌
B.嫩舌
C.淡胖舌
D.瘦舌
E.点、刺舌
参考答案：C
I kept looking at the man, wondering _______.
A．whether I have seen him before
B．whether I had seen him before
C．that I had seen him before
D．when I saw him before
下列有关化学反应xM+yN=mP+nQ的说法中，正确是（ ）
A．化学计量数x与y的和一定等于m与n的和
B．该反应为复分解反应，且在P和Q中一定有一种物质为水
C．反应物M和N的质量比一定等于生成物P和Q的质量比
D．若M为ag、N为ag，反应后生成的P和Q的质量总和一定不是ag
