Free riders' is a term associated with the people who would like to have benefit of a good without sharing the cost of its supply. prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
A.
正确
B.
错误
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【简答题】若α 1 ,α 2 ,…,α r 线性相关,β 1 ,β 2 ,…,β s 线性相关,则α 1 ,α 2 ,…,α r ,β 1 ,β 2 ,…,β s 线性相关.
【简答题】Why does the author say Bob is extremely methodical? E.V E.RY B.O D.Y WA.ST E.S T I. M.SX B. E.. I. N.ST E.A. D. O F. D.O I. N. G. H. I.S H.O M. E.WOR K., T H. E. S C. H.OOL B.OY WA.T C. H. E.S T E.L ...