相关考题
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单项选择题
素描的造型四个因素有形体、结构、空间（）
A.黑白
B.轮廓
C.线条
D.明暗 -
多项选择题
爱国主义的基本要求是（）。
A.爱祖国的大好河山
B.爱自己的骨肉同胞
C.爱祖国的灿烂文化
D.爱自己的国家 -
单项选择题
How does route poisoning work with holddown timers to prevent routing loops?（）
A. Information learned from one source is not distributed back to that source.
B. Routing updates from the poisoned source are ignored until a holddown timer expires.
C. Failed routes are advertised with infinite metrics.
D. New routing updates are ignored until the network has converged.
E. A route is marked as unavailable when its time-to-live is exceeded.
