药品生产企业的某批原料，共有包装324件，检验时随机取样量应为

A、<p><span lang="EN-US" style="font-size: 10.5pt; font-family: 宋体;">9</span><span style="font-size: 10.5pt; font-family: 宋体;">件</span></p>

B、<p><span lang="EN-US" style="font-size: 10.5pt; font-family: 宋体;">10</span><span style="font-size: 10.5pt; font-family: 宋体;">件</span></p>

C、<p><span lang="EN-US" style="font-size: 10.5pt; font-family: 宋体;">17</span><span style="font-size: 10.5pt; font-family: 宋体;">件</span></p>

D、<p><span lang="EN-US" style="font-size: 10.5pt; font-family: 宋体;">18</span><span style="font-size: 10.5pt; font-family: 宋体;">件</span></p>

E、<p><span lang="EN-US" style="font-size: 10.5pt; font-family: 宋体;">19</span><span style="font-size: 10.5pt; font-family: 宋体;">件</span></p>