安全带静载荷实验,试验荷重为()公斤,试验时间为()分钟。
备兑开仓需要()合约标的进行担保 ["部分","一半","足额","没有要求"]
空气压缩机作业环境应保持清洁和干燥,贮气罐需放在通风良好处,半径()以内不得进行焊接或热加工作业. ["10m","12m","15m","18m"]
基粒又称为() ["微粒体","糖原颗粒","中心粒","ATP酶复合体","联会复合体"]
姜炙药物时,一般每100kg生姜应制备姜汁()。 ["5kg","l0㎏","l5㎏","l2kg","8kg"]
简述汇率变化对进出口的影响。