The present specification provides a method, system and apparatus for posting data to a plurality of accounts at a plurality of remote servers. The formulation can include a drug, a solvent vehicle, and a solidifying agent. The second variable resistance layer is formed to cover the step and have, above the step, a bend covering the step. When S2, and the dolphin jumps into the water, then S0. In an optical device according to the present invention, a bare fiber having a side surface on which a metal film was formed is inserted into and secured to a ferrule, and an end face of the bare fiber is protruded from an end face of the ferrule, and a distance L between the end faces satisfies a relationship L<4d, and a film is formed on the end face of the bare fiber.