有关镜下血尿,正确的描述是() ["肉眼无血色","镜检红细胞>3个/HPF","尿液潜血试验呈阳性","每升尿液中含血量<lml","多见于急性溶血"]
哥特弓描记是为了() ["帮助患者下颌后退","确定正中关系位","确定垂直距离","了解下颌运动情况","重复测定的客观依据"]
计量法规定,()应当废除。 ["国际计量单位","法定计量单位","非法定计量单位","工程计量单位"]
呈黄色或淡黄色的尿液结晶是() ["尿酸铵结晶","尿酸结晶","胆红素结晶","胱氨酸结晶","磷酸铵镁结晶"]
末端脱氧核苷酸转移酶有哪些作用?
错油门过封度的大小对调速系统有哪些影响?