问题
单项选择题
完成骨塑形期在成人需要（）
A.1～2年
B.2～4年
C.3～4年
D.4～5年
E.3～6年
答案
参考答案：B
解析：骨塑形期在肢体负重运动后，骨小梁重新接受力线方向排列，需时较长，完成塑形在儿童中需1～2年，在成人则需2～4年。
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完成骨塑形期在成人需要（）
A.1～2年
B.2～4年
C.3～4年
D.4～5年
E.3～6年
参考答案：B
解析：骨塑形期在肢体负重运动后，骨小梁重新接受力线方向排列，需时较长，完成塑形在儿童中需1～2年，在成人则需2～4年。
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| Mother's Day is celebrated in the USA. It's also holiday in some other countries. It is on the second Sunday in May, It's a day to thanks. 1 that day mothers usually 2 flowers and cards. On the cards, children will write "Thanks mother", "To the best mother in the world", "Best 3 for Mother's Day" and so on. Where does the idea for the holiday come from? We should thank Miss Anna M.Jarvis. She brought up the idea of having such a day. She 4 West Virginia. Her mother 5 on May 9th, 1905. She had a deep love with her mother. She wrote letters to 6 important persons. In her letters she asked them to decide a for 7 mothers. Then Mother's Day was made on the second Sunday in May by the USA in 1913. On Mother's Day, children gave presents 8 their mothers, 9 the whole family go out and try to do 10 for their mothers. | |||
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