Assuming that clocks in an A clock driver, a B clock driver and a CMOS buffer circuit have delay values Ta, Tb and Td, respectively, a delay value Ta\u2212Td is stored in a register circuit when terminals \u201c0\u201d of selector circuits are selected, and a delay value Ta\u2212Td\u2212Tb is stored in a register circuit when the terminals \u201c0\u201d are switched to \u201c1\u201d. The malononitrile compound has an efficient pesticidal activity and can control effectively pests such as insect pests, acarine pests, nematode pests and the like . A complementary method, composition and method for making the composition for rendering an anodized metal surface, especially a magnesium surface, conductive is disclosed.