行走时膝关节的活动度保持在什么范围之间（） A.0°～60° B.0_爱下问搜题

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问题单项选择题 A1/A2型题

行走时膝关节的活动度保持在什么范围之间（）

A.0°～60°

B.0°～50°

C.5°～80°

D.5°～60°

E.0°～80°

答案

参考答案：D

选择题

----This returned Chinese scholar has become one of the top experts in this field.

----Yes,I know him very well.He____in Africa with animals for eight years.

A．has worke

B．had worked

C．worked

D．has been working

问答题

试述编制管理技术的现代化。