The albinism is associated with the deficiency of ()
A. Homogentisic oxidase
B. Phenylalanine hydroxylase
C. Tyrosinase
D. Xanthine oxidase
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TCA cycle does NOT take place in()
A. Hepatocyte
B. Osteocyte
C. Neuron
D. Erythrocyte
Which of the following is NOT true in relation of urea cycle?()
A. First two steps are taken place in mitochondria
B. Defect of enzyme of any steps can cause deficiency disease
C. Urea is formed by NH3, glutamic acid and CO2
D. Citruline is formed by combination of carbamoyl phosphate and L-Ornithine
“32㎜系统”受欢迎的主要原因包含（ ）
A. 合理的轴间距不能小于30mm
B. 美国习惯使用英制尺度
C. 具有很强的灵活性和适应性
D. 与建筑的300mm模数冲突
影响人们睡眠质量的物质因素主要有温度、通风、照明、噪声和（ ）等
A. 床具的功能
B. 心理因素
C. 湿度
D. 精神因素
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