题目内容

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

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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

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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.

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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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What happens if the adopted child learns the fact through channels other than the adoptive

A. They will never trust the adoptive parents again.
B. They will probably think that the adoptive parents keep it a secret due to some shameful reasons.
C. They will leave the adoptive parents and prefer to be homeless.
D. They certainly will be annoyed.

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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()．

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

What happens if the adopted child learns the fact through channels other than the adoptive

A. 正确
B. 错误

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)