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【单选题】
一个具有 n 个顶点的连通图,其最小生成且仅有多少条边A.
n+l
B.
n
C.
n-l
D.
2n
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反馈参考答案：
举一反三
【单选题】Our grave prospensity to bureaucracy is inseparable from the current overstaffig of our organization.
A.
incarnation
B.
incarceration
C.
inclination
D.
incantation
【多选题】Which ones are Socrates' thoughts?
A.
The unexamined life is not worth living.
B.
Death my be the greatest of all human blessings.
C.
Envy is the ulcer of the soul.
D.
I know nothing except the fact of my ignorance.
【单选题】Could we be doing our children a grave disservice by letting them have their own way ? Are we rearing a generation of spoilt brats? Select the appropriate explanations of the underlined parts.
A.
not serve our children well; have their own way of life; follow
B.
do a lot of harm to our children; do whatever they want; raise
【简答题】Our knowledge about the health of living dolphin populations is sadly incomplete. The grave er is that some unique and fascinated dolphin species will 【S1】______ be gone. Urgent action is needed t...
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