单选题One of the main advantages of a graphite-furnace atomizer is that（）AIt requires only very small quantities of a sampleBIt requires metal.ions in aqueous solutionCIt does not produce background emission like a flameDIt does not get hot like a flame
单选题
One of the main advantages of a graphite-furnace atomizer is that（）
A
It requires only very small quantities of a sample
B
It requires metal.ions in aqueous solution
C
It does not produce background emission like a flame
D
It does not get hot like a flame
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