The compound, 3-amino-5-hydroxybenzoic acid(AHBA), is the specific and indispensible starter unit for the biosynthesis of ansamycins in microbes.
氨基-5-羟基苯甲酸（AHBA）是微生物产生安莎类抗生素及其相关抗生素的必需前体。
I taught my daughter Starter Unit 2 this morning. It turned out that she could grasp the content. She is almost good enough to learn from the courseware by herself.
今天早上，我教了女儿预备第二单元的内容。事实证明，她是能够掌握那些内容的。她几乎可以自己利用课件来学习了。
I taught my daughter Starter Unit 2 this morning. It turned out that she could grasp the content. She is almost good enough to learn from the courseware by herself.
今天早上，我教了女儿预备第二单元的内容。事实证明，她是能够掌握那些内容的。她几乎可以自己利用课件来学习了。
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