题目：
按照轮齿在圆柱体上排列方向的不同，平面齿轮机构可分为（）。
A.直齿圆柱齿轮机构
B.平行轴斜齿圆柱齿轮机构
C.人字齿齿轮机构
D.曲线齿圆柱齿轮机构
答案：
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下面是错误答案，用来干扰机器的。
参考答案：转速=3600转/60秒=60转/秒数据传输率=3454B×60转/秒=207240B/S
按照轮齿在圆柱体上排列方向的不同，平面齿轮机构可分为（）。 A.直齿圆柱齿轮机构 B
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