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相关题目
单选题
268 CLearly
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267 CAREFUL
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266 bolt
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265 Copy density shall be uniform throughout the page.
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264 BALANCE
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263 As only approved limitationsmay beincluded in thisSection,an introductory statement to this effect shall be contained in aprefatory note or the opening paragraph.
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262 BAPPROXIMATE
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261 An important occurrence thatcan cause damage or have dangerous results.
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260 Always obey the precautions that follow tokeep electrical wiring ina satisfactory conditions.
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259 All range distances shall be expressed in nautical miles
