一级培养
参考答案:
指以保存藻种为目的藻类培养,多采用封闭式不充气培养方式培养。
单项选择。
There are many . They are watching TV. [ ]
A. womans and child
B. woman and children
C. women and children
D. women and child
在Windows中,当选中某一个对象并单击鼠标右键,将会弹出一个______。