I usually have some and milk breakfast. [ ]
A. breads, for
B. bread, for
C. bread, at
答案:B
硬癌()。
A.非润性癌
B.早期浸润性癌
C.浸润性特殊癌
D.浸润性非特殊癌
微生物接种到新培养基上经历的时期并做适当解释?