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相关试题
- 1.“这种金属在摄氏1500度下才会熔化。”一句的英文表达，哪一项正确？ 选项： A、The metal melts at 1500°C. B、The metal melts with 1500°C. C、The metal melts under 1500°C. D、The metal melts on 1500°C.
- 2.“这种金属在摄氏1500度下才会熔化。”一句的英文表达，哪一项正确？ 选项： A、The metal melts at 1500°C. B、The metal melts with 1500°C. C、The metal melts under 1500°C. D、The metal melts on 1500°C.
- 3.“这种金属在摄氏1500度下才会熔化。”一句的英文表达，哪一项正确？选项： A:The metal melts at 1500°C.; B:The metal melts with 1500°C.; C:The metal melts under 1500°C.; D:The metal melts on 1500°C.
- 4.“这种金属在摄氏1500度下才会熔化。”一句的英文表达，哪一项正确？ A: The metal melts at 1500°C. B: The metal melts with 1500°C. C: The metal melts under 1500°C. D: The metal melts on 1500°C.
- 5.“这种金属在摄氏1500度下才会熔化。”一句的英文表达，哪一项正确？A．The metal melts under 1500°C.B．The metal melts on 1500°C.C．The metal melts at 1500°C.D．The metal melts with 1500°C.
- 6.“这种金属在摄氏1500度下才会熔化。”一句的英文表达，哪一项正确？A.The metal melts at 1500°C.B.The metal melts with 1500°C.C.The metal melts under 1500°C.D.The metal melts on 1500°C.
- 7.( ) this temperature the metal melts. 选项： A:On; B:By; C:In; D:At
- 8.( ) this temperature the metal melts. 选项： A:Of; B:On; C:At; D:In
- 9.“这种金属在摄氏1500度下才会熔化。”一句的英文表达，哪一项正确？
- 10.“这种金属在摄氏1500度下才会熔化。”一句的英文表达，哪一项正确？
- 11.When the metal melts, we will pour the liquid into special ______. （ ） 选项： A:molds B:mounds C:rounds D:bolds
- 12. A circuit breaker differs from a fuse in that a circuit breaker _____ 选项： A:melts and must be replaced ; B: is enclosed in a tube of insulating material with metal ferrules at each end ; C: gives no visual indication of having opened the circuit; D: trips to break the circuit and may be reset
- 13.A circuit breaker differs from a fuse in that a circuit breaker ______. 选项： A.melts and must be replaced B.is enclosed in a tube of insulating material with metal ferrules(环) at each end C.gives no visual indication of having opened the circuit D.trips to break the circuit and may be reset
- 14.When a filler metal is used, the weld metal composition is not affected by () 选项： A:the composition of the base metal; B:heat treatment; C: the composition of the filler metal; D: the dilution
- 15.30.（英英释义）The metal has a layer of plastic on it to prevent corrosion. 选项： A:A. The metal is has a plastic coat to prevent itself from being damaged. B:B. The metal is covered outside to protect itself from damage. C:C. The metal has a coating of plastic on it to prevent corrosion.
- 16.某地区环境重金属污染物超标通常与哪项（ ）无关 Which item is usually unrelated to the excess of heavy metal pollutants in an area（ ） 选项： A:金属冶炼与再生 Metal smelting and regeneration; B:金属加工与制造 Metal processing and manufacture; C:金属产品使用 Use of metal products; D:金属物质自然地表迁移 Natural migration of metal substance on the earth surface
- 17.When a filler metal is used, the weld metal composition is not affected by () 选项： A、the composition of the base metal B、heat treatment C、 the composition of the filler metal D、 the dilution
- 18.Choose the correct meaning for the abbreviation of MIMS insulation 选项： A: Metal Insulated Mineral Shielded B: Mineral Shielded C: Metal Inner Mineral Shielded D: Mineral Insulated Metal Sheathed E: Metal Insulation Metal Sheathed
- 19.Five Elements refer to .? Wood, Fire, Air, Water, and Metal|Fire, Light, Metal, Earth, and Wood|Earth, Wood, Fire, Metal, and Water|Metal, Air, Light, Earth, and Water
