下列哪种骨折表现出"银叉"畸形（） A.伸直型肱骨髁上骨折 B.屈

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问题单项选择题

下列哪种骨折表现出"银叉"畸形（）

A.伸直型肱骨髁上骨折

B.屈曲型肱骨髁上骨折

C.Colles骨折

D.Smith骨折

E.肱骨外科颈骨折

答案

参考答案：C

选择题

下列叙述正确的是

A．1 mol H₂O的质量为18g/mol

B．3.01×10²³个SO₂分子的质量为32g

C．CH₄的摩尔质量为16g

D．标准状况下，1 mol任何物质体积均为22.4L

单项选择题

Which of the following is an example of an arbitrage opportunity()

A. A portfolio of two securities that will produce a certain return that is greater than the riskfree rate of interest.

B. A stock with the same price as another has a higher rate of return.

C. A stock with the same price as another has a higher expected rate of return.