OSI将整个通信功能划分为七个层次,划分层次的原则是?( ) I. 网中各结点都有相同的层次 II.不同结点的同等层具有相同的功能 III.同一结点内相邻层之间通过接口通信 IV.每一层使用高层提供的服务,并下层提供服务 A. I、II与IV B. I、II与III C. II、III与IV D. I、III与IV
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【单选题】If a firm produces a return on assets of 15 percent and also a return on equity of 15 percent, then the firm:
【单选题】Suppose you invest in a firm that produces software for personal computers. ( ) is not a kind of firm-specific risk affecting the rate of return on this investment.
A.
Competition from other manufacturers
B.
Pending lawsuit on the firm’s difficulties
C.
Loss of the major software developers to other companies
【简答题】SAMPLES The samples include pre-production sample, bulk production sample. Two pieces per model of pre-production samples will be sent us before production ( one to Hong Kong office and the other to F...