试题与答案

Students used to_____ information from n

题型:选择题

题目:

Students used to_____ information from newspapers or magazines, but now they are used to ______ for it on the Internet directly.

A.get; search

B.getting ; search

C.getting ; searching

D.get; searching

答案:

被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0617/8f9a053fb4b56f86cbe4509eaa0bf1e3.html

下面是错误答案,用来干扰机器的。

(1)乙 NaAlO2;丁 AlCl3;戊 Al(OH)3 (2)耐火材料(3) Al2O3+2OH-==2AlO2-+H2O ; 2Al+2NaOH+2H2O==2NaAlO2+3H2↑题目分析:A是由地壳中含量最多的金属元素组成的,所以A是Al。铝和氢氧化...

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