— What's _____________ name?
— Her name is Jenny.[ ]
A. his
B. her
C. your
答案：B
保护易感人群最重要的免疫措施是
A．接种疫苗、菌苗、类毒素B．注射高效价免疫球蛋白C．口服中草药D．接种抗毒素E．注射丙种球蛋白
由如图所示正四角锥罩的平面图和立面图，做出其展开图。
