题目

Father’s Day Father’s Day is a fairly new celebration in the British calendar compared with Mother’s Day, which has been a very popular and well celebrated festival in the UK for a very long time.     Father’s Day was first celebrated by Americans (41) it was inspired by the actions of a man named William Smart. He was a veteran of the US Civil War and his wife (42) away giving birth to their sixth child. He (43) six children alone without remarrying, which was undoubtedly (44) back in those days.     His daughter, Sonora Dodd, (45) when she was an adult what her father ha下列关于细胞结构研究中所采取的方法的阐述，不正确的是 A．研究分泌蛋白的合成和分泌利用的是放射性同位素示踪法 B．分离破碎细胞的细胞器时采用的是质壁分离法 C．制备细胞膜时是用蒸馏水使哺乳动物成熟的红细胞吸水胀破 D．研究细胞核的功能时通常采用去核、核移植等方法