单项选择题

儿童肱骨髁上骨折易并发( )。

A．肘外翻
B．肘内翻
C．屈肘障碍
D．伸肘障碍

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单项选择题

-Would you like to go on a picnic with me today? -I don't think so. To be honest, I really don't feel like___on a picnic. A.
going B.
to go C.
go D.
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不定项选择

高合格品率过程控制图主要面向不合格品率为水平的生产线。

A．错误
B．正确