白蔹的性状特征为
A.纵瓣呈长圆形或近纺锤形
B.切面周边常向内卷曲,中部有1凸起的棱线
C.外皮红棕色,易层层脱落
D.切面黄白色,角质状
E.气微,味甘
参考答案:A,B,C
The reason he did not come was he was ill.
A.that; why
B.that; that
C.why; that
D.why; which
冷压室压铸机的压室与熔炉是分开的,其压室的工作条件比热压室的好。()