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【多选题】
脊柱A.
由24块椎骨、1块骶骨和1块尾骨借其连接装置而构成
B.
前纵韧带、后纵韧带及黄韧带可限制脊柱过度前屈
C.
椎体自上而下逐渐加大，但自骶骨耳状面以下则逐渐变小
D.
有四个生理性弯曲，其中颈腰曲凸向前方
E.
可做前屈、后伸、侧屈、旋转及环转运动
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举一反三
【简答题】根据给出的短语，写出中文意思：electronic mail
【简答题】E-mail or electronic mail, is considered as the modem communication in the new age. It iscarried out in computers all over the world by millions of users. In this invisible world as many people call i...
【单选题】(Electronic) mail to describe an upcoming workshop (should use) only (if) potential participants use this form. of communication (regularly).
A.
Electronic
B.
should use
C.
if
D.
regularly
【单选题】According to the passage, "electronic mail" is a way to _________.
A.
upgrade the old mail system
B.
get electronics by mail
C.
communicate by personal computers or computer terminals
D.
connect to the post office
【简答题】删除AdventureWorks数据库中的testldat4文件。
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