下列期权交易策略中，不属于风险有限、收益也有限的策略的是（）。 A: A看涨期权构成的牛市价差策略（Bull SpreaD） B: B看涨期权构成的熊市价差策略（Bear SpreaD） C: C看涨期权构成的蝶式价差策略（Butterfly SpreaD） D: D看涨期权构成的比率价差策略（CallRatio SpreaD.）

There is widespread public_______about how the disease is spread.

There is widespread public ___ about how the disease is spread. (ignore)

The news quickly ________ among thesoldiers. A: was spread B: spread C: have spread D: were spread

There is widespread public_______about how the disease is spread. A: ignore B: ignorance

U408What new threats does globalization bring? A: The quick spread of perishable items. B: The quick spread of wildfire. C: The quick spread of disease. D: The quick spread of the labor-force.

________ the scandal among his colleagues, Mr. Williams would have been promoted to the position as director. A: . If he did not spread B: . Had he not spread C: . Did he not spread D: . Should he not spread

There is a lot of public [input=type:blank,size:4][/input]about how the disease is spread. (ignore, ignorance)

概念题：利差（spread）

Which of the following best explains the slope of the yield curve A: The term spread between the yields of two maturities. B: The credit spread between two securities with different maturities. C: The nominal spread between two securities with different maturities.