Ar Human Bings Alik ？-人都是相像的吗？

Although th basic structur of th human body is th sam for all popl, thr ar many individual diffrncs. You ar wll awar of th diffrncs in th siz and shap of popl＇s had, nck, lgs, arms, ys, ars, and nos. Bcaus of ths diffrncs, you can tll on prson from anothr. Th intrnal body parts of popl also diffr! Intrnal faturs vary from prson to prson just as th xtrnal faturs vary. For xampl, th structur of th lungs of most popl is basically th sam, but lungs vary in shap, siz, and wight from prson to prson.