某生化指标在人群中为正态分布,制定其参考值范围通常用()
A <img border="0" alt="" src="https://tuku.weimei168.com/uploads/upimg/20241207/8083905_0.gif">±SD B
<img border="0" alt="" src="https://tuku.weimei168.com/uploads/upimg/20241207/8083905_0_1.gif">±4SD C
<img border="0" alt="" src="https://tuku.weimei168.com/uploads/upimg/20241207/8083905_0_2.gif">±2SD D
<img border="0" alt="" src="https://tuku.weimei168.com/uploads/upimg/20241207/8083905_0_3.gif">±5SD E
<img border="0" alt="" src="https://tuku.weimei168.com/uploads/upimg/20241207/8083905_0_4.gif">±3SD