题目

下列关于物质用途的叙述中，不正确的是 A．钾钠合金呈液态，可做快中子反应堆的导热剂B．硅酸钠俗称“水玻璃”，是制造水泥的原料 C．硅是太阳能电池的常用材料                D．氧化镁的熔点高达2800℃，是优质的耐高温材料 答案：B1、此题要求改正所给的短文中的错误。对标有题号的每一行作出判断： 此行无错误：在该行右边横线上打一个钩（√）： 此行多一词：用斜线（＼）划掉，在该行右边横线上写出该词，并也用斜线划掉； 此行缺一词；在缺词处加一个（∧），在该行右边横线上写出该加的词； 此行错一词；在错的词下划一横线，在该行右边横线上写出改正后的词。 I think it is time that we do something to help                           1．          animals．Firstly, fur farms should be closed．                            2．          Animals should not be keep in small places，and                            3．          treated cruel．They should be given the right to                             4．          live in the wild where they are belong．Secondly,                           5．          the general public should not sell fur coats lf there                           6．          is no longer a demand at the coats，factories will                                  7．          stop making them．This would save the life of many                       8．          animals，some of them have almost died out as a                                  9．          result of what we have done them．Please give them a chance．               10．