  The observed spectral energy distributions of five GeV-selected narrow-line
Seyfert 1 (NLS1) galaxies are fitted with a model including the radiation
ingredients from the relativistic jet, the accretion disk, and the corona. We
compare the properties of these GeV NLS1 galaxies with flat spectrum radio
quasars (FSRQs), BL Lacertae objects (BL Lacs) and radio-quiet (RQ) Seyfert
galaxies, and explore possible hints for jet-disk/corona connection. Our
results show that the radiation physics and the jet properties of the GeV NLS1
galaxies resemble that of FSRQs. The luminosity variations of PMN J0948+0022
and 1H 0323+342 at GeV band is tightly correlated with the beaming factor
({\delta}), similar to that observed in FSRQ 3C 279. The accretion disk
luminosities and the jet powers of the GeV NLS1 galaxies cover both the ranges
of FSRQs and BL Lacs. With detection of bright corona emission in 1H 0323+342,
we show that the ratio of the corona luminosity (L_corona) to the accretion
disk luminosity (L_d) is marginally within the high end of this ratio
distribution for a RQ Seyfert galaxy sample, and the variation of jet
luminosity may connect with Lcorona. However, it is still unclear whether a
system with a high L_corona/L_d ratio prefers to power a jet.
