瑞士的旅游业何以发达？
A carbon dioxide fire extinguisher has been partially discharged, and should be immediately （）. ["tagged and restowed properly in its rack","weighed and the charge loss recorded","given to the chief engineer for recharging","tagged "empty" and stowed separately from charged extinguisher"]
根据总行2016年《关于加大产能严重过剩行业信贷结构调整力度的通知》，以下（）行业客户属于压缩、退出类。 ["钢铁","煤贸","建材批发","造船"]
中国古典园林的两种基本类型是（）。 ["皇家园林","江南园林","私家园林","寺庙园林"]
检验员的基本职能是什么？
内燃机由哪两大机构和五大系统组成？
