题目内容

客户更换印鉴时,旧印鉴卡上应加盖()。

A. 作废
B. 已更换
C. 注销
D. 剪角,不需盖章

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利用半导体的光电效应制成的器件叫半导体器件。

A. 正确
B. 错误

You need to create a new VLAN on your Catalyst switch. This VLAN is to be named TESTKING. Which of the following need to be completed for the creation of this new VLAN?()

A. The TESTKING VLAN must be created.
B. The desired ports must be added to the new TESTKING VLA
C. The TESTKING VLAN must be added to all of the domains.
D. The TESTKING VLAN must be named.
E. An IP address must be configured for the TESTKING VLA
F. None of the above. VLAN creations are automatic.

一个8位的A/D转换器(量化精度0.1%),孔径时间3.18µm,如果要求转换误差在转换精度内,则允许转换的正弦波模拟信号的最大频率为()

A. 5Hz
B. 50Hz
C. 100Hz
D. 500Hz

均衡价格

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