X denotes the bonded atoms towards the central atom, carbon is bonded with two hydrogen atoms and 1 oxygen atom. As a result, X = three評估長期或çŸæœŸæš´éœ²ç”²é†›ï¼Œå¯èƒ½æœƒå°å“¡å·¥å’Œé¡§å®¢å¥åº·ç”¢ç”Ÿæ€Žæ¨£çŸæœŸå’Œé•·æœŸçš„å�… Read More
X denotes the bonded atoms towards the central atom, carbon is bonded with two hydrogen atoms and 1 oxygen atom. As a result, X = three評估長期或çŸæœŸæš´éœ²ç”²é†›ï¼Œå¯èƒ½æœƒå°å“¡å·¥å’Œé¡§å®¢å¥åº·ç”¢ç”Ÿæ€Žæ¨£çŸæœŸå’Œé•·æœŸçš„å�… Read More