下列关于水合氯醛的正确叙述是
A．对胃肠道无刺激
B．无耐受性和依赖性
C．无肝肾功能损害
D．服用后起效较慢
E．醒后无明显不适
参考答案：E
Everyone was invited to the party _______ Lily. So she was upset.
A. except B. about C. of
水轮机泥砂磨损的基本原理是什么？
