【判断题】方解石是玻璃光泽

【判断题】ABS外观透明，且具有高度的光泽性。

【单选题】B货翡翠呈现的光泽是（ ）

【单选题】金属的材料分为（）。

【简答题】金属铕

【单选题】矿物的光泽与

【简答题】No single element has tantalized and tormented the human imagination more than the shimmering metal known by the chemical symbol Au. For thousands of years the desire to possess gold has driven people...

【单选题】最轻的金属是以下金属中的（）

【判断题】钛是稀有金属。()

【简答题】阅读理解。 People use money to buy food, books, bicycles and hundreds of other things which they need.  When they work, they usually get paid in money. Most of the money used today is made of metal or pape...