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贝茨氏细胞




    1. The test would be the first time a genetically altered virus was released as an insecticide in the United States, said Fred Betz, a biologist at the U.S. Environmental Protection Agency.
    2. Betz, based in Trevose, Pa., makes specialty chemicals used in process systems by various manufacturing industries.
    3. "The whole purpose of the (McKinney) act is to take restraints off. If they amend it, they're defeating the whole purpose, which is to provide affordable housing," Betz said.
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