【单选题】Glass can be _______ from old bottles.
【单选题】Glass can be made ______ drinking glasses. [ ]
【单选题】Glass can be _________many wonderful things.
【单选题】Glass can be made ____bottles and other things.
【单选题】What can be learned about making new glass? A . It results in lots of waste in neighborhoods. B . The material for new glass can be easily got. C . It is slightly more expensive than recycling glass. ...
【单选题】下列叙述不正确的是 [ ]
A.
最外层电子数为偶数的短周期元素不会与卤素或氢形成最简式为AB 3 型的化合物
B.
由短周期元素组成的A 2 B 3 型化合物中A、B元素的原子序数的差值可能为1、3、5
C.
稀有气体不活泼的原因是它们原子的最外层都达到8电子或2电子的稳定结构
D.
已经发现的元素中,最外层电子数分别为1、2、3、4、5、6的元素,可能是非金属元素也可能是金属元素
【单选题】Glass can be easily molded into all kinds of forms because ______.
A.
it melts like liquid when heated
B.
it softens gradually through varying stages when heated
C.
it retains the shape at the point when it is suddenly cooled
D.
various heating techniques can be used in making glass
【判断题】应收账款附有现金折扣条件的,企业应按照扣除现金折扣后的总额入账。
【简答题】Glass can be _______(制成) different shapes of bottles.