两个或两个以上动名词作主语,谓语用单数还是复数?

问题描述:

两个或两个以上动名词作主语,谓语用单数还是复数?
Finding multiple possibilities in architecture and studying on relationships among architecture,human and environment is/are apealing to me.

are一定要用are.
因为有多个名词作宾语补足语的主语