Which sequence is correct when launching a lifeboat stowed in gravity davits?（） ["Release gripes，turn on emergency disconnect switch，release frapping lines","Release tricing pennants，turn on emergency disconnect switch，release frapping lines","Operate limit switches，release gripes，lift brake","Release gripes，lift brake，release tricing pennant"]
应用于浮选中的无机盐类药剂有哪些类型？
期货交易中持仓限额制度包含（）。 ["一般月份持仓限额","交割前一月持仓限额","交割当月份持仓限额","单边持仓限制","套期保值"]
在电能表错接线的情况下测得的电能量与负载实际消耗的电能量之差称为更正系数。
美国证券市场股票价格指数有（）。 ["恒生指数","道斯指数","纳斯达克指数","《金融时报》指数","标准普尔指数"]
构成菜肴属性的条件是什么？
