题型一阅读理解A（2023甘肃白银）阅读下面语言材料，然后按文后要求做题。PencilsandPensNooneknowswhoinventedpencilsorwhenithappened.ASwissdescribedapencilinabookin1565.Hesaiditwasapieceofwoodwithleadin...
