【简答题】来源于一个细胞在固体平板培养基上形成的群体称()。
【单选题】Producing a thermogram is ______.
A.
expensive because of the high voltage the machine requires
B.
a time-consuming process
C.
inexpensive after the machine is purchased
【多选题】电话沟通过程中需要感谢客户的情况有( )。
【单选题】初生木质部3~4原型,薄壁细胞中含少数草酸钙簇晶,无针晶的药材是