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问题 单项选择题 A1/A2型题

脊髓的创伤性损伤中，"多位于T12～L1，造成椎体前移，通常不稳定，导致脊髓、圆锥或马尾神经功能的完全性障碍"属于（）。

A.颈脊髓损伤

B.过伸性损伤

C.开放性损伤

D.挥鞭性损伤

E.胸腰脊髓损伤

答案

参考答案：E

选择题

思想解放是社会变革的先导。巴黎公社、俄国十月社会主义革命，都是对世界历史有着重大影响的社会实践，它们所依据的理论来源于

A．《权利法案》

B．《 * * 宣言》

C．《独立宣言》

D．《 * * 党宣言》
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单项选择题

Suppose an investor has an opportunity to invest $3 million in a venture investment that is expected to pay $30 million at the end of 4 years if it survives. The cost of capital for a project with this risk level is 30%. However, the project may not survive the full 4 years and has an expected failure rate shown in the probability table shown below. The likelihood of failure in the first year is 25% , with the likelihood of failure in the second year being 20% ( assuming it survives the first year) and so on.

A．Year

B．1

C．2

D．3

E．4

F．Failure Probability

G．25%

H．20%

I．15%

J．10%
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