（）是对企业管理各基本方面规定的活动框架，用于调节集体协作行为。
A．管理制度
B．业务规范
C．技术规范
D．行为规范
参考答案：D
读对话，判断正(√)误(×)。
Amy: Excuse me. Where is the library?
Wu: It's near the gym.
Amy: And then?
Wu: Turn left at the gym, then go straight. It's on the left.
Amy: Thank you.
Wu: You're welcome.
( ) 1. Amy wants to go to the cinema.
( ) 2. She goes there by bus.
( ) 3. She turns left at the gym.
( ) 4. The library is on her left.
某无色溶液经定量分析得如下数据
下列有关该溶液的说法中不正确的是[ ]
A．X、Y均不可能是Fe2+
B．X、Y代表的离子所带电荷电性相反，电量相同
C．该溶液的pH<7
D．若X是H+，则Y可能是I-
