78. If a chemical shift of an NMR signal is 7.2 ppm measured in a 60 MHz NMR spectrometer, how many Hz would this signal be from the TMS signal?
(A) 8.3 Hz
(B) 432 Hz
(C) 0.12 Hz
(D) 72 Hz

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統計: A(0), B(0), C(1), D(0), E(0) #4042059

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