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【单选题】
脊柱过度后弯称为脊柱后凸,也称为驼背,多发生于A.
颈段脊柱
B.
胸段脊柱
C.
腰段脊柱
D.
骶椎
E.
腰、骶段
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举一反三
【简答题】微型计算机存储系统中，PROM是
【简答题】13. Cotton_____ in
the southeast of China.A. is grown B. are grown C. grows D. grow
【单选题】Which of the following is most likely to increase consumer surplus in the market for cotton T-shirts?
A.
. Weather conditions provide for an extremely productive cotton harvest.
B.
. Consumer incomes fall and cotton T-shirts are normal goods.
C.
. The price of polyester T-shirts falls.
D.
. The price of industrial sewing machines used to produce garments increases.
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