You add a particular e-mail address to the Blocked Senders list in the Microsoft Windows Mail application. You still receive messages from this e-mail address. You need to prevent the receipt of all e-mail messages from this e-mail address. What should you do?（） ["A","B","C","D"]
患者张某，男，48岁，呼吸衰竭，8号气管插管术后当日，患者痰液多且粘稠，护士给予经气管插管内吸痰，不正确的操作是：（） ["吸痰前整理呼吸机管路，倾倒冷凝水","使用12号吸痰管吸痰","吸痰管外径应=气管插管内径的1\/2","吸痰管插入遇有阻力时，应分析原因，不得粗暴操作","观察患者生命体征及呼吸机参数变化"]
“自由心证”在我国社会制度下的实施，会严重影响司法（）。 ["依法","独立","公正","公平"]
爆堆边缘到准轨铁路中心线的距离不能小于（）m。 ["2.0","1.5","2.5"]
倾斜透视存在于所画的方形物体倾斜透视图中，有三个消失点，大多存在于平视及斜仰视中。
水行政执法
