组成病毒粒子衣壳的化学物质是

A、<span style="FONT-FAMILY: 宋体; FONT-SIZE: 14px">糖类</span>

B、<span style="FONT-FAMILY: 宋体; FONT-SIZE: 14px">蛋白质</span>

C、<span style="FONT-FAMILY: 宋体; FONT-SIZE: 14px">核酸</span>

D、<span style="FONT-FAMILY: 宋体; FONT-SIZE: 14px">脂肪</span>