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理論力學(xué),絕對好用 |
點(diǎn)評
我數(shù)學(xué)也是很差,對于力學(xué)也很是頭疼
是的,所以對數(shù)學(xué)基礎(chǔ)差的學(xué)起來費(fèi)力,俺正在補(bǔ)課。
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