L\u00fd thuy\u1ebft Sinh h\u1ecdc 10 B\u00e0i 12: Th\u1ef1c h\u00e0nh: Th\u00ed nghi\u1ec7m co v\u00e0 ph\u1ea3n co nguy\u00ean sinh<\/a><\/blockquote><\/iframe>