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问题 填空题

MSCServer与MGW之间、GMSCServer与GMGW之间通过MC接口连接。该接口基于IP承载和（）协议。该接口支持（）多归属机制.

答案

参考答案：H.248协议；SCTP

单项选择题 A1/A2型题

荧光免疫技术中应用最广泛的荧光素是（）.

A.FITC

B.RB200

C.TRITC

D.R-RE

E.Eu3+
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选择题

— Do you know when the teacher ______ back tomorrow?

— Sorry, I don't know. If he ______ back, I will tell you at once. [ ]

A. comes; comes

B. comes; will come

C. will come; comes

D. will come; will come

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