In some river mouths and estuaries the incoming high-tide wave crest overtakes the preceding low-tide trough. This results in a wall of water proceeding upstream，and is called a（）. ["seiche","bore","boundary wave","surge"]
FA4型断路器电气控制箱“远方―就地”控制把手的作用是什么？
DOS系统中文件路径最长为（）个字符。
通过了可行性研究后，项目组织的会议主要目的是（） ["选择人员","分配任务","讨论项目计划","组织设备"]
In some parts of the world there is often a slight fall in tide during the middle of the high water period. The effect is to create a longer period of stand at higher water. This special feature is called a(n)（）. ["apogean tide","double high water","perigean tide","bore"]
FA4断路器由哪些主要部件组成？作用是什么？
