亚稳态
参考答案：
材料以高于平衡态时自由能的状态存在，处于一种非平衡的状态。
桃仁既能活血祛瘀，又能润肠通便，并能()
A.行气散结
B.凉血消痈
C.利水消肿
D.止咳平喘
We ______certain livings as birds not because they have long legs or short legs,but because they all have
feathers.
A．think
B．classify
C．look
D．divide
