痛泻要方所治的痛泄之证，“泄”责之()
A.心
B.肝
C.脾
D.胆
E.胃
参考答案：C
当反应级数（）时，火焰传播速度与压力无关；反应级数（）时，压力增加，火焰传播速度下降。
—They didn’t go swimming yesterday, did they?
—_______ I saw them skate in the park.[ ]
A. Yes, they did.
B. No, they didn’t.
C. Yes, they were.
D. No, they weren’t.
