Mostconductingmaterialssuchascopper,aluminum,iron,nickel,andtungsten（）.
A: increaseinresistancewithincreasedtemperature
B: increaseinresistancewithdecreasedtemperature
C: decreaseinresistancewithincreasedtemperature
D: increaseinconductancewithincreasedtemperature
A: increaseinresistancewithincreasedtemperature
B: increaseinresistancewithdecreasedtemperature
C: decreaseinresistancewithincreasedtemperature
D: increaseinconductancewithincreasedtemperature
举一反三
- An advantage of aluminum pistons， when compared to cast iron pistons is （）.
- Metal utensils such as iron, copper, or aluminum are appropriate to prepare decoctions.
- Which of the following metals is environmental friendly? A: iron B: aluminum C: copper D: titanium
- The metal utensils made from iron, copper and aluminum are forbidden to decoct drugs.
- Passage Three What kind of minerals can we find on the ocean floor A: Iron and copper. B: Gold and copper. C: Nickel and bronze. D: Iron and bronze.