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【简答题】
下列关于资本资产定价模型β系数的表 述中,正确的有 A. β系数可以为负数 B. β系数是影响证券收益率的唯一因素 C. 投资组合的β系数一定会比组合中单只证券的β系数低 D. β系数反映的是证券的系统风险
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举一反三
【单选题】He got up early to catch the first bus.
A.
He got up early
B.
to catch the first bus
C.
got up
【简答题】He got up _____________(早) than I did this morning.
【单选题】He got up, stumbling blind with sleep,.... (Para. 13)
A.
When he got up, he stumbled because he became blind and sleepy.
B.
When he got up, it was still very dark and he was still very sleepy. He could hardly open his eyes and could not see or think clearly, so he walked or moved unsteadily and blindly.
C.
When he got up, he moved unsteadily because he became blind and sleepy.
【简答题】使用形状工具绘制的图形，边缘会有一圈明显的“细线”，这些线段被称为。
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