题目内容

What are disadvantages of Network Address Translation Transparency?()

A. There is no disadvantage.
B. It will add 16 bytes per packet of overhead(8 bytes UDP header, and 8 bytes of NON-IKE Marker).
C. It will add 36 bytes per packet of overhead (20 bytes of IP header, 8 bytes of UDP header, 8 bytes of NON-IKE Marker).
D. It will require that both crypto peers support this feature in the IOS version. Both crypto peers must also have this feature enabled.

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榨油机中榨笼的刮刀作用是()。

A. 推进物料前进
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C. 增加产量

讲话时为了保持声音和动作的一致性,应该怎么做?()

A. 先发声再做动作
B. 同时发声和做动作
C. 先做动作再发声

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A. 正确
B. 错误

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