月度计划可以变更一次,但旬计划、追补计划及月度联运计划不得变更。()
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如图所示连杆机构中,当曲柄OC绕O轴摆动时,滑块A沿曲柄自由滑动,从而带动AB杆在铅垂导槽内移动。已知OC=a,OK=l,在C点垂直于曲柄作用力Q;而在月点沿BA作用一力P,则机构平衡时,力P与Q的大小关系为 ()。
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Which of the following is not among the generally accepted accounting principles?______.
A. Prudence
B. Cash basis
Consistency
D. Going concern
E. Money measurement.