腹泻患儿补液过程中出现乏力、腹胀、肠鸣音减弱、腱反射消失，心音低钝，应考虑为（） ["低钾血症","低氯血症","低镁血症","低钙血症"]
市场开业前应取得消防安全开业检查合格文件。（）
To prevent loss of stability from free communication flooding you should（）. ["close the cross-connection valve between the off-center tanks","completely flood high center tanks","ballast double bottom wing tanks","close any opening to the sea in an off-center tank"]
国外集体谈判的主要特点不包括（）。 ["定期举行","国家主导","形式多样","内容广泛"]
财富顾问需要经历与客户多年的互动、了解、沟通才可能了解到情况包括（）。 ["A.家庭状况","B.家庭境内外资产分布","C.企业经营状况","D.财富配置目标"]
管道式消静电器的主要结构是什么？说明其消电原理。
