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搜题
更多“Authentic materials can only be used in the classroom for beginners.（）”相关的问题
第2题
A、A.smothering the burning material B、B.chemical combination with burning material C、C.absorbing the burning material D、D.organic destruction of the burning material
第3题
A、chemical and physical properties of the material B、name of the alternative standard or specification C、the ASTM or ABS specification the material approximates D、manufacturer or origin of the material
第5题
A、A safe-water buoy will display red and white vertical stripes of reflective material B、All reflective material is white because it is the most visible at night C、A special-purpose mark will display either red or green reflective material to agree with its shape D、A preferred-channel buoy displays either red or green reflective material to agree with the top band of color
第6题
A、signaling that all personnel are clear before lifting or lowering material B、Examining material for sharp edges or protruding points before handling C、Closing, tagging, or securing valves that permit entrance of steam, water, or air into a fitting or other equipment D、Throwing materials from high places to the deck
第7题
A、preventing oxygen from reaching the burning material B、cooling the burning material below its ignition temperature C、using the extinguishing agent to make the burning material fire-resistant D、using the extinguishing agent to absorb the heat
第8题
A、A.manufactured products/raw materials B、B.raw materials/manufactured products C、C.foods/minerals D、D.minerals/foods
第9题
A、more definitions, examples of usage, and information about pronunciation, and grammar B、authentic pronunciation and a manageable amount of vocabulary C、phrasebooks, dictionaries, videos, games and provide online and/or telephone support D、from dictionaries to language courses E、in a much easier and more effective way F、beginners or people with only a little knowledge of the language
