Lead compounds can be obtained from a variety of different sources such as the flora and fauna of the natural world, or synthetic compounds made in the laboratory. There is also the potential of designing lead compounds using computer modeling or NMR spectroscopic studies.(本题5.0分)

Lead compounds can be obtained from a variety of different sources such as the flora and fauna of the natural world, or synthetic compounds made in the laboratory. There is also the potential of designing lead compounds using computer modeling or NMR spectroscopic studies.(本题5.0分)
A. 正确
B. 错误
参考信息: A

4. (判断题) ( )Biomolecules are compounds of nitrogen.(本题5.0分)
A. 正确
B. 错误
参考信息: B

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