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【单选题】
圆弧运动指令的特点是( )。A.
对路径精度要求不高
B.
确保从起点到终点之间的路径始终保持为直线
C.
确保从起点到终点之间的路径始终保持为圆弧
D.
以上都不对
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A.
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Many times.
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D.
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A.
Her reports are late.
B.
He needs help with the budget.
C.
He is finished with an assignment.
D.
She did not respond to his e-mail.
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