如图三种血管及血液流动的示意图，据图作答：
请你用英语描述你同桌的衣着。
This is ……. He/ She……. Her/ His name is……. She/ He is……years old. Look, he's/she's is wearing…….
CH3COO-＋H+已达平衡，若要使醋酸的电离平衡向左移动和溶液的pH值都减小，应加入的试剂是