47. Select the most reasonable formula for the compounds with the following mass spectral data: M+ at m/z = 136 and M+2 at m/z = 138 of approximately equal intensity.
(A) C6H13OCl
(B) C4H9Br
(C) C10H16
(D) C9H12O
(E) None of the above

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統計： A(1), B(7), C(1), D(0), E(0) #1074593