25. A social network structure refers to ________.
(A) the informal connections among individuals within groups
(B) the extent of diversity in a formal group
(C) the varying skills and knowledge that the members of a group posses
(D) the formal norms and rules of a group that members must abide by

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統計： A(3), B(0), C(3), D(0), E(0) #2586988