[问答题]
State Einstein's principoao1+n)3fxlv oes3 :gq5 nlyff/0i;yba -m4ile of ewzt 58vgxb +wl u4ei,oexj4 5kat::8a quivalence.
参考答案: No experiment can be performed that could distinguish between a uniform gravitational field and an equivalent uniform acceleration.
or
Gravitational mass is equivalent to inertial mass.
