The audio file format is decided when you record the sound.
查看答案
The audio file format is sure to be MP3 when created by Cool Edit.
A. 对
B. 错
When you finish editing and want to save the file, you should decide the sound file format.
A. 对
B. 错
基因表达调控的基本调控方式是？
A. 基因结构修饰
B. 转录起始
C. 转录后加工
D. 蛋白质翻译及加工
lac阻遏蛋白结合在乳糖操纵子的什么位置？
A. P序列
B. O序列
C. I基因
D. Z基因
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