对继电保护装置的基本要求是：可靠性、选择性、快速性和灵敏性。（）
参考答案：对
The teacher was very angry _______ me because I didn't finish my homework. [ ]
A. over
B. with
C. about
D. at
能杀灭HP的药物有
A．硫糖铝
B．胶体次枸橼酸铋
C．胃复安
D．胃舒平
E．阿托品
