痫证的发病以下列哪项最重要：
A．脏腑失调
B．气机逆乱
C．气滞血瘀
D．痰邪作祟
E．风阳内动
参考答案：D
You boys and girls, remember to write your composition ______ you are told. [ ]
A. what
B. that
C. as
D. like
防治梨黑星病有哪两个关键环节？
