For many years marine centrifuges were designed for （） operation, that is the machines were run for a period during which solids accumulated in the bowlThe machine was stopped when the accumulated solids began to impair its performance.

[单选题]女性，26岁，关节痛反复发作年余，伴血沉增快，间断服用泼尼松后好转，停用泼尼松半年后，出现低热，面部蝶形红斑，下肢水肿就诊。实验室检查：血红蛋白70g／L，尿液检查蛋白（++++），红细胞5～10个／HP，24小时尿蛋白定量3．5g，为非选择性蛋白尿，A／G=35／42g／L，超声提示心包、双胸腔少量积液和少量腹腔积液，心电图有sT段和T波改变（缺血样改变）本例应采取的治疗方案是（）。

[问答题]　　简述南丁格尔的主要贡献。

[单选题]专业技术职务评审委员会中，青年人员应占（　　）。

[单选题]以下条件中，可予试产的是（）

[填空题]（）是一名新人走进职场最被注重的道德品质，是通往职场的第一张通行证。

[单选题]具有降气止呕的花类药物是（）

[单选题]建筑施工中最主要的三种伤亡事故类型为（）。

[问答题]什么是相关群体？相关群体对消费者购买行为的影响主要有哪些方面？ 

[单选题]炭疽病原治疗首选（）

[判断题]断路器全开断时间等于断路器的分闸时间和燃弧时间之和。

[单选题]For many years marine centrifuges were designed for （） operation, that is the ma...

[单选题]For many years marine centrifuges were designed for （） operation, that is the ma...

[单选题]The cleaned heated oil, after passing through the centrifuges, is to be pumped t...

[单选题]The cleaned heated oil, after passing through the centrifuges, is to be pumped t...

[单选题]船钟（）

[单选题]The members in the Senate must be at least （）years old and those in the Represen...

[问答题]Four years ago, Jane was twice as old as Sam. Four years on from now, Sam will b...

[单选题]In three years, Janice will be three times as old as her daughter. Six years ago...

[问答题]Four years ago, Jane was twice as old as Sam. Four years on from now, Sam will b...

[问答题]Four years ago, Jane was twice as old as Sam. Four years on from now, Sam will b...