Be quiet! They （） a meeting in the next room. ["are having","have","were having","will had"]
提出了“圣人苘可以强国，不法其故；苘可以利民，不循其理”是谁？
在石油产品硫含量测定法（燃灯法）中，硫含量在0.05%以上及高沸点的产品（如汽油）其注入量为（）（具体数量视硫含量而定）。 ["1mL~2mL","1.5mL~3mL","2.5mL~3mL","4mL~5mL"]
造成农业面源污染的主要原因是（）。 ["滥施化肥农药","水资源匮乏","土壤地域差异","干旱、风沙的影响"]
"Town Hall is the tallest building in the city." "（）from here?" ["Can it see","Can it be seen","Can see","Can be seeing it"]
卸载作业的安全要求有哪些？
