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一匀质圆盘的惯性半径等于圆盘的半径。

A. 正确
B. 错误

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客运人员在接班前和工作中不食用葱、蒜等异味食品。

A. 正确
B. 错误

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当变速自行车上坡行驶时，脚踏轮配搭是小齿轮带动大齿轮。

A. 正确
B. 错误

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The network administrator is trying to add Switch1 to the network， but the 802.1Q trunk is not coming up. Switch1 was previously tested in the laboratory and its trunk configuration worked fine. What are three possible causes of this problem？（）

A. The trunking configuration mode on Switch1 is set to Off.
B. The trunking configuration mode on the other end is set to On.
C. The trunking configuration mode on the other end is set to Desirable.
D. Cisco Discovery Protocol is not running on the other end.
E. There is a VTP domain name mismatch.
F. Switch1 does not support 802.1Q

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