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【单选题】
在拐杖底端包上橡皮垫有助于（）
A.
增加重力
B.
减少压强
C.
增加摩擦力
D.
减少反作用力
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题目标签：
橡皮垫
拐杖
皮垫
参考答案：
参考解析：
刷刷题刷刷变学霸
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【简答题】Young Japanese people are evolving a new lifestyle for the 21st century based on the cell phones that few are now able to live without. While about one-third of Japanese primary school students aged 7...
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【多选题】拐杖把手的高度是从患者的伸腕握住把手时
A.
肘屈曲40度
B.
肘屈曲30度
C.
肘屈曲20度
D.
手柄与股骨大转子持平
E.
手柄在股骨大转子下方5cm
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【判断题】油系统需使用铸铜阀门，法兰禁止使用塑料垫、橡皮垫（含耐油橡皮垫）和石棉纸垫。
A.
正确
B.
错误
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【简答题】虫蛀拐杖 （3字口语）
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【单选题】使用拐杖时，腋窝与拐杖顶垫间应相距约
A.
1~2C.m
B.
2-3C.m
C.
3-4C.m
D.
4~5C.m
E.
5~6C.m
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【单选题】在拐杖底端包上橡皮垫有助于（）
A.
增加重力
B.
减少压强
C.
增加摩擦力
D.
减少反作用力
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【单选题】使用拐杖时，拐杖底端应侧离足跟 ()
A.
5～10㎝
B.
10～15㎝
C.
15～20㎝
D.
20～25㎝
E.
25～30㎝
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【简答题】阅读理解. Facebook means never having to say goodbye.The social media website has earned a reputation for reconnecting old friends.Last week,a guy whom I hadn't seen since my bachelor party five years ...
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