题目内容

为什么管嘴出流时，阻力增加了，泄流量反而增大？

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You are deploying two core switches， one in each building， 50 km away from each other. The cross-connection between them will be a Layer 2 2-gigabit EtherChannel with an 802.1Q trunk. You configured it correctly but the link does not come up. The port is in the "admin up" state， and the line protocol is in the "down" state. The fiber link is OK. What would be the most likely reason for the link not to come up？（）

A. The switches are not the same model
B. You are not using the correct SFP
C. You are not using correct optical media converters
D. Configuration should be modified， because the distance is longer

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养物质吸收的主要部位在哪里？吸收机制（形式）有哪些？

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按信息载体性质分类，我国现阶段发行的社会保障卡属于（）。

A. 人工智能卡
B. 磁条卡
C. 芯片（I卡
D. 指纹支付卡

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投射测验是一种独特的人格测验，它是目前应用最广泛的测试方法。

A. 正确
B. 错误

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