上皮非典型性增生是指
A.上皮细胞增生,但极性不丧失B.不会进一步发展为原位癌或浸润癌C.不浸润上皮下层D.上皮细胞异型增生,排列紊乱,极向消失
参考答案:D
As we joined the big crowd I got_____from my friends. [ ]
A. separated
B. spared
C. lost
D. missed
油罐火灾扑救中冷却罐体时应注意哪些问题?