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spec: He groaned suddenly and leant forward , supporting his invisible head on invisible hands . The course committee set a precedent by developing the curriculum in consultation with the National Institute on Alcohol Abuse and Alcoholism ( NIAAA ) and the National Institute on Drug Abuse ( NIDA ) . The legislators are still in the process of gathering information , so most of what you read or hear about ultimate outcomes is supposition at this point . When he reached a lane , a good mile from the scene of the previous evening , the man pitched his basket and leant upon a gate . Involves recording and monitoring the plant , animal and insect species at a site or group of sites . For this reason - - but to make the unusual two steps backward for every forward , this measurement , a single sample measurement is taken by the mine operators and not by MSHA . Third , many statutes provide for Presidential delays in enforcement . He took no notice of my coming in ; nor did he move when the captain followed and leant on the berth beside me , looking darkly at the mate . This hideous apparition strode up the hall and leant against a carved pillar beside the fire . Historically , these events are buying opportunities .