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力学题难解,电学题更难解,熟练把握公式、规律的选择方法与思路,可直接提高做题的成效(结果与速度),电学计算题将不再难不可解。
Mechanical problems difficult to solve, electrical problems more difficult to understand, skilled grasp of the formula, the law of choice methods and ideas can directly improve the effectiveness of the problem (results and speed), electrical calculation will no longer be difficult to understand.