38 What is meant by "concert songs" in paragraph 7?
A Songs sung by zebra finches at a concert.
B Songs sung by female finches for male finches
C Songs sung by male finches to other finches.
D Songs sung by male finches for female finches
第1题
A、一个链路集内必须有超过四条信令链路。
B、到一个目的信令点的多个链路应开在不同的七号信令板(NO7或LPN7)上。
C、到一个目的信令点应开有多个信令链路集。
D、到一个目的信令点的七号信令链路可以开在一个2M系统内。
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