09年12月,菲律宾著名的马荣火山再次喷发,其主要原因是()
A.地壳的凹陷
B.太平洋板块与亚欧板块碰撞挤压
C.地壳的隆起
D.太平洋板块与亚欧板块之间张裂
参考答案:B
Without the introduction of a risk-free asset or a zero-beta portfolio, the optimal portfolio on the efficient frontier for each investor is represented by:()
A. the point where the investor’s highest indifference curve is tangent to the efficient frontier.
B. any point where an indifference curve intersects the efficient frontier.
C. the point where the capital market line touches the frontier.
肾结核单纯使用抗结核药物指征是()
A.静脉肾盂造影一侧不显影
B.静脉肾盂造影一侧广泛破坏
C.肾盂造影显示病变轻
D.一侧肾钙化
E.肾结核并结核性挛缩膀胱