培养条件
参考答案：
促进微生物发芽、生长和繁殖所采用的生长培养基和培养方法的组合。
Believe it or not ,our house isn’t ______ their new house bought last month.
A．half as large as
B．as half large as
C．as large as half
D．large as half as
直接费是指与构成工程实体密切相关的费用，它包括（）。
A、人工费
B、间接费
C、材料费
D、机械使用费
