【单选题】观察荧光时,若无特别说明,通常使用的紫外光波长为
【简答题】ad. as a result 结果;因此;所以
【单选题】观察荧光时,若无特别说明,通常使用的紫外光波长为
【单选题】The opera was ______from an ancient fairy tale, which is about the romantic love of a prince and a comely shop girl.
【单选题】Mum ____ a fairy tale to her son.
【简答题】fairy tale: ________________________
【简答题】c____ ad. as a result 结果;因此;所以