An aircraft in the form of multi-stage missile 1 with a spiral inducing assembly 2 which is capable of inducing the missile to travel in a continuous spiraling motion without the missile rolling. Since a control voltage having an amplitude 2\xd7VDD is applied from a level shift circuit to a charge-pump circuit, even when potentials at nodes becomes a level 2\xd7VDD, pMOS transistors are kept in an OFF state, thereby preventing leakage of currents from pMOS transistors. More specifically, and in an exemplary embodiment, the refrigerator includes a fresh food compartment and a freezer compartment. Feature values of each packet filtering policy are resolved. The memory controller controls a memory to store information indicating display positions of the at least two or more images on a screen in association with the group that has been formed by the grouping unit. When the fastening device is inserted into the bony tissue, the crown distributes the load over a wider section of the bone, allowing the bone to maintain its structural integrity.