下列关于回避的决定说法正确的有（）。 ["公安机关负责人的回避由同级人民政府决定","人民警察的回避由上级公安机关决定","公安机关负责人的回避由上一级公安机关决定","人民警察的回避由其所属的公安机关决定"]
置换焊补燃料容器，如操作者需进入容器内操作，则应满足的规定有（）。 ["容器内部的可燃物含量不得超过爆炸下限的1\/3～1\/4","容器内含氧量为18～21%","容器内含氧量为30～40%","毒物含量符合"工业企业设计卫生标准"的规定"]
从理论上分析，税收促进经济增长的机制，是通过税收对（）产生影响而实现的。 ["劳动供给","技术进步","资本形成","扩大需求"]
B2O3玻璃是唯一能用来制造有效吸收（）的氧化物玻璃。
Which two statements regarding the FLASHBACK_TRANSACTION_QUERY view are correct?（） ["You can find information about only active transactions from the view","You can find information about read only transactions from the view","You require the SELECT ANY TRANSACTION system privilege to access the view ","You can find information about both active and committed transactions from the view ","You require the SELECT ON FLASHBACK_TRANSACTION_QUERY object privilege to access the view"]
给下列汉字注音并组词。撸
