下列物质中,不属于激素的是()
A.肾素
B.肝素
C.促红细胞生成素
D.促胰液素
E.降钙素
参考答案:B
女性,30岁,有不洁性生活史,2月前外阴少量硬结状肿物,自然消退。近1周出现流感症状,多发性皮疹。若拟确诊,以下检查中首选()
A. * * 分泌物涂片
B. * * 分泌物培养
C.血常规
D.梅毒血清学检查
E.脑脊液检查
People throughout the world are eating ______ meat per person as they did in 1950. A. more than twice B. twice much as C. twice as muchD. twice more