选择电流互流器时，应根据（）参数选择。
A.额定电压
B.准确度等级
C.额定一次电流及变比
D.额定一次电流及变比
参考答案：A, B, C, D
( )为建设项目参与各方提供方便的信息检索服务。
A．建设项目信息搜索层
B．建设项目协同工作层
C．建设项目信息发布与传递层
D．工作流支持层
We study in a school ____ fame is known nationwide and it is a school _______ we can fully develop our potential(潜能).
A．which; where
B．whose; which
C．who; that
D．whose; in which
