[问答题]
State Einstein's princip jinsf*mdq*qx-3x9i qpmuu/r .x)//hle of equivbwux, +ees:5 (arlko,alence.
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.
