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问题 单项选择题

当给液压系统储压器放气时，如果液压油从充气活门芯中放了出来，这表明（）。

A：储压器充气压力过大

B：系统压力过高

C：单向活门内漏

D：储压器活塞密封损坏

答案

参考答案：D

单项选择题

（）是指与一般的传统的或惯常的思维方向相反的一种思维。

A.收敛思维

B.发散思维

C.联想思维

D.逆向思维
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单项选择题

An analyst is comparing two bonds and has collected the following data: Bond A: Nominal spread of 125 basis points, zero-volatility spread of 125 basis points, and option-adjusted spread of 65 basis points. Bond B: Nominal spread of 95 basis points, zero-volatility spread of 95 basis points, and option-adjusted spread of 95 basis points. Each bond is similar in all respects except that bond A is a mortgage pass-through security and bond B is a non-callable corporate bond. Based only on this information, which of the following statements is most accurate（）

A. The yield curve is perfectly flat.

B. Bond A is preferred over Bond B because its nominal spread is 30 basis points higher.

C. The option-adjusted spread measures the relative curvature of the yield curve and its effect on option cost.
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