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下列说法中哪些正确( ) (1)虚电路与电路交换中的电路没有实质不同 (2)在通信的两站间只能建立一条虚电路 (3)虚电路也有连接建立、数据传输、连接释放三阶段 (4)虚电路的各个结点不需要为每个分组作路径选择判定 A.(1),(2) B.(2),(3) C.(3),(4) D.(1),(4)
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举一反三
【单选题】He left the city, _____ never to come back.
A.
determined
B.
determining
C.
decided
D.
deciding
【单选题】He left the city,_____never to come back.
A.
determined
B.
determining
C.
decided
D.
deciding
【简答题】词汇运用 1．He left the city,________(决心) never to come back. 2．What he said was very ________(有说服力的) and at last we all accepted his idea. 3．Yesterday he ________(录制) this song by Liu Huan,using his _____...
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【单选题】He left the city, _____ never to come back.
A.
determined
B.
determining
C.
decided
D.
deciding