核素成像，静态图像分析的要点是
A．脏器位置
B．脏器形态
C．动态变化
D．放射性分布
E．脏器大小
参考答案：A,B,D,E
解析：C不属于分析要点。
A hospitalized client craves a drink while withdrawing from alcohol. Which of the following measures is the best way to help the client resist the urge to drink
A．A routine search of visitors.
B．A locked-door policy.
C．One-to-one supervision by the staff.
D．Support from other alcoholic clients.
中性点接地的作用是：（）
A.可迅速切断故障设备电源
B.可降低系统故障时的人体接触电压
C.线路可以短时运行
D.可降低电气设备绝缘要求
