肝胶体显像适应证为（）
A.肝占位性病变
B.黄疸鉴别
C.胆系结石时，肝、胆各部位功能状况判定
D.先天性胆道闭锁
E.婴肝综合征
参考答案：A
It's ____ good food that we all like it very much. [ ]
A. so a
B. such a
C. so
D. such
电动机的启动间隔有何规定？
