[问答题]
State Einstein's prin9/1gbb a+i)cp0v umct jm*)etn/kf2 fq q; ,8px;xxl rylnw4ikc:6-tciple of equivalence.
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.
