题目内容

在保持经营效率和财务政策不变,而且不从外部进行股权融资的情况下,股利增长率等于可持续增长率。 ()

A. 正确
B. 错误

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对于两种证券形成的投资组合,基于相同的预期报酬率,相关系数之值越小,风险也越小;基于相同的风险水平,相关系数越小,取得的报酬率越大。 ()

A. 正确
B. 错误

把两种不同的金属片插入柠檬,制成“水果电池”,用电压表测量水果电池的电压,如图所示.下列说法正确的是().

A. 金属片B是水果电池的正极
B. 水果电池把化学能转化为电能
C. 水果电池把内能转化为电能
D. 水果电池把电能转化为化学能

听力原文:W: Are you glad that you're studying computer science?
M: Yes, indeed. I had wanted to major in physics, chemistry, or mathematics. But I have changed my mind.
Q: What is the man's major now?
(15)

A. Computer science.
B. Physics.
Chemistry.
D. Mathematics.

A.In the headmaster's office.B.In a hospital.C.In a language lab.D.At twelve o'clock.

A. In the headmaster's office.
B. In a hospital.
C. In a language lab.
D. At twelve o'clock.

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