【单选题】(The workers) in the factory (demanded) that their pay (would) be raised (by) 20 percent.
【单选题】在浓度相同的条件下,下列石棉纤维的危害性最大的是
【单选题】在浓度相同的条件下,判断下列哪种石棉纤维的危害性最大()
【多选题】起重机的拆装作业应在白天进行,当遇有下列那些天气时应停止作业?
【多选题】起重机的拆装作业应在白天进行,当遇有下列哪些天气时应停止作业?()
【简答题】The workers in that factory manufacture furniture.
【单选题】—What are their jobs? —They are ______ workers. [ ]
【单选题】在浓度相同的条件下,下列哪种石棉纤维的危害性最大