\textbf{214-} Element M has oxidation numbers $+1$ and $+4$, and element X has oxidation numbers $-1$ and $-2$. If the atomic mass of X is twice the atomic mass of M, with which oxidation numbers of elements M and X is the mass percent of M in their compounds greater?
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(1) $-1, +4$ \hfill (2) $-2, +4$ \hfill (3) $-2, +1$ \hfill (4) $-1, +1$
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