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搜题
【单选题】
同一物种可以进行交配，遗传物质相同，由于地理原因和环境压力，会形成A.
地理亚种和生理亚种
B.
地理亚种和环境亚种
C.
环境亚种和生理亚种
D.
地理亚种和变种
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】When a bond's price falls, its yield to maturity ________ and its current yield ________.
A.
rises; falls
B.
rises; rises
C.
falls; rises
D.
falls; falls
【单选题】If an investor purchases a bond when its current yield is higher than the coupon rate, then the bond's price will be expected to:
A.
decline over time, reaching par value at maturity.
B.
increase over time, reaching par value at maturity.
C.
be less than the face value at maturity.
D.
exceed the face value at maturity.
【单选题】When a bond's price falls, its yield to maturity ________ and its current yield ________.
A.
falls; falls
B.
rises; rises
C.
falls; rises
D.
rises; falls
【判断题】A movement along the demand (or supply) curve occurs when the quantity demanded (or supplied) changes at each given price (or interest rate) of the bond in response to a change in some other factor be...
A.
正确
B.
错误
【单选题】The duration of a coupon bond increases
A.
the longer is the bond's term to maturity.
B.
when interest rates increase.
C.
the higher the coupon rate on the bond.
D.
the higher the bond price.
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