常发生颗粒变性的组织器官是（）。
A.心脏、肝脏、肾脏
B.皮肤
C.肌肉
D.骨骼
E.胃
参考答案：A
从对人体健康的角度考虑，制作炒菜锅的金属最好是（ ）
A．Fe
B．Cu
C．A1
D．Pb
—We held a party for my grandpa’s birthday last night.
—You must have had good time.
A．eightieth; /
B．eightieth; a
C．eighty; a
D．eighty; /
