下列（）属于社区卫生干预计划的一级目标人群。 ["老年高血压病人","病人的家庭成员","卫生保健人员","决策者"]
一线业务凭证按照用途分为（）。 ["存款类","贷款类","结算类"]
在Word中，要实现“替换”字符串的功能，可以选择什么命令操作？（） ["Ctrl+H键","Ctrl+F键","“编辑\/替换”","“编辑\/查找&rdquo"]
When used with reversing reduction gears, medium-speed diesel engines should be bolted to their foundations with fitted bolts at the drive end and clearance(loosely fitted) bolts in other locations √This is done to （） ["maintain alignment when the ship’s hull is working in heavy seas","ensure engine vibrations correspond to the natural frequency of the hull","permit the engine to expand away from the driven equipment as the engine heats up and expands","maintain engine thrust bearing clearance"]
35千伏及以下线路常见的相间短路保护有哪些？
数字控制器的设计方法主要有（）和直接设计方法两种。
