Part One (paras 1-9):On ________ Day 1943, as a young ________ at sea, the writer came up with the idea of expressing his ________ to people who had helped him before.
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Part Two (paras 10-16):The writer wrote ________ thank-you letters to his ________, the Rev. Nelson and his ________ respectively.
不属于人体运动执行体系的器官是( )。
A. 骨
B. 关节
C. 骨骼肌
D. 肝
属于人体运动执行体系的器官是( )。
A. 骨骼肌
B. 胃
C. 肾
D. 肝
属于人体运动调节体系的内容是( )。
A. 呼吸系统
B. 神经系统
C. 消化系统
D. 泌尿系统