原发性脊柱侧弯是指（） A.由遗传因素引起的脊柱侧弯 B.由脊柱_爱下问搜题

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问题单项选择题

原发性脊柱侧弯是指（）

A.由遗传因素引起的脊柱侧弯

B.由脊柱骨骼病变引起的脊柱侧弯

C.由脊柱旁肌肉病变引起的脊柱侧弯

D.由神经病变引起的脊柱侧弯

E.无明确原因的脊柱侧弯

答案

参考答案：E

选择题

There is no power like _____ power of confidence, and there is no student as competitive as _____ student who trusts his own abilities.

A．the; a

B．a; the

C．/; a

D．the; /

名词解释

“传播单位”