优点：输出在 (−1,1)，比 sigmoid 居中，对梯度更友好
“Merger after merger in the media industry has harmed workers, diminished competition and free speech, and wasted hundreds of billions of dollars better invested in organic growth,” said the WGA.
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The Pokémon event announced that Mega Garchomp Z has been "discovered" in the game. Players can claim this mystery gift starting today.
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Trade between the EU and two South American countries may start within two months under a provision application of the Mercosur deal.