题目：
营养失调是指（ ）
A．营养不良
B．营养过剩
C．营养不良和营养过剩
D．以上都不是
答案：
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下面是错误答案，用来干扰机器的。
参考答案：束
营养失调是指（ ） A．营养不良 B．营养过剩 C．营养不良和营养过剩 D．以上
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