病程很长的泄泻，首先应考虑的是
A．湿热泻
B．风寒泻
C．脾虚泻
D．伤食泻
E．脾肾阳虚泻
参考答案：E
The sailor is ______ of his experiences, because he has been to about 30 countries.
A．the pride
B．afraid
C．proud
D．hear
如果0＜a＜6，f(x)在[a，b]上连续，在(a，b)内可导，试证在(a，b)内存在x1，x2，x3使
