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【单选题】
存在规模经济的情况下,边际成本与平均成本的关系A.
边际成本小于平均成本
B.
边际成本大于平均成本
C.
边际成本等于平均成本
D.
边际成本与平均成本无关
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举一反三
【单选题】Fill in each gap in the sentences with an appropriate word. In some cases, both words may be used. 1) A fire broke out at the school but the teachers were able to lead the▁▁▁children to safety.
A.
afraid
B.
frightened
【判断题】It is important for both teachers and learners to accept the fact that errors are not an inevitable part of the learning process.
A.
正确
B.
错误
【简答题】旅游目的地与客源地的空间相互作用取决于相互间的( )、 ( )和( ),遵循空间组织的( )。
【判断题】1-2-8根据鲍利不相容原理、最低能量原理以及洪特规则,下列铬原子核外电子分布是否正确? 24 Cr 填充顺序为 1s 2 2s 2 2p 6 3s 2 3p 6 3d 4 4s 2
A.
正确
B.
错误
【判断题】It is important for both teachers and learners to accept the fact that errors are not an inevitable part of the learning process.
A.
正确
B.
错误
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