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Get top tips from an expert photographer while you are taking digital photographs in the Garden at Kew.Event detailsWednesday 13 – Thursday 14 February, 2019Time: 10:30 am – 4 pmPlace: Kew GardensCourse Fee: £160About the courseThis course is designed for camera-owners who would like to know the basics. It will explain some of the basic principles of photography such as focus and exposure as well as many of the practical aspects such as how to download and store images.The great part of the time will be spent practicing techniques by actually using cameras out in the beautiful gardens at 存在于RNA中而不存在于DNA中的含N碱基是 [　　] A．鸟嘌呤 B．腺嘌呤 C．尿嘧啶 D．胸腺嘧啶