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问题 单项选择题

女，12岁，脊柱侧弯畸形，双下肢长短不一，结合图像，最可能的诊断是（）

A.骨纤维结构不良

B.骨巨细胞瘤

C.内生软骨瘤

D.非骨化性纤维瘤

E.Paget病

答案

参考答案：A

单项选择题

Which of the following international organizations' mandate is to makes resources available to member countries with balance of payments problem（）

A. World Bank.

B. World Trade Organization.

C. International Monetary Fund.
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单项选择题

A deepwell pump is a type of（）.

A.screw pump

B.centrifugal pump

C.eductor

D.gear pump
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