“今宜先练陆师，再练水师。”讲这句话的戈登曾经是（）
A.洋枪队首领
B.淮军将领
C.湘军将领
D.新军将领
参考答案：A
SDH网络中对于双向环复用段倒换既可用2纤方式也可用4纤方式，而对于通道倒换环只用（）方式。
A.2纤
B.3纤
C.4纤
D.5纤
When the adjacency matrix method is used to store a graph, which of the statements is (are) true ( ) Ⅰ．the space required depends on the number of vertices Ⅱ．the apace required depends on the number of edges
A．None
B．Ⅰ only
C．Ⅱ only
D．Ⅰ and Ⅱ
