题目内容:
Mass Spectrometry(MS)is the science of displaying the spectra of the masses of the()comprising a sample of material.
A.atoms
B.molecules
C.ions
D.cations
参考答案:
Mass Spectrometry(MS)is the science of displaying the spectra of the masses of the()comprising a sample of material.
A.atoms
B.molecules
C.ions
D.cations