[问答题]
State Einstein's principle or, l9 k 1m+, dncfvt-fsl7(hgjf equivalence.0 cd( 1eky) n6i2pr /ml86hihmh;ugfr
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.
