The recent conference on the effective use of the seas and oceans was another attempt resolving major differences among countries with conflicting interests.

A．resolve

B．resolves

C．to resolve

D．being resolved

下列对TI抗原的描述中，正确的是（）

A.刺激机体产生抗体时需T细胞辅助

B.多为蛋白质

C.可诱导产生免疫记忆

D.仅刺激机体的细胞免疫反应

E.刺激机体产生的抗体多为IgM类