潜在水下的潜水艇受______力和______力作用.
潜在水下的潜水艇受浮力和重力的作用.
故答案为:浮;重.
My cousin gave me a nice toy. What sentence element is the underlined part?
A.Direct object
B.Indirect object
C.Adverbial
D.Attributive
世界观和方法论是同一问题的两个方面。