The "standard" wall plate in Chinese hotels can accept two plugs - 2-prong parallel legs, or the 3-prong Australian plugs with the angled legs.
Some of the OEM laptop charger bought in the US has US-type 3-prong plugs - like my Dell Mini10. That plug will require an adapter. But a netbook doesn't require the earth cable anyways, and I have a 3rd party charger that I also use, which is only 2-prong, and that will fit in Chinese plates without any adapter. Same for my chargers for camera(s), phones, etc.