题目

在下面的短文中只有10处错误，请找出，多出的（从第11处起）不给分。 增加：在缺词处加一个漏词符号（∧），并在此符号下面写出该加的词 删除：把多余词用（﹨）划掉 修改：在错词下划一横线，并在该词下写出修改后的词 Half a year before I went abroad for further study． I received a lot of present．All were wrapped in color paper．Among them were two presents which were really interested me．My sister buy me a book with color pictures about body language and with words about customs of different countri可逆反应 N2+H2?2NH3 是一个放热反应．有甲、乙两个完全相同的容器，向甲容器中加入1mol N2和3mol H2，在一定条件下，达平衡时放出的热量为Q1；在相同条件下，向乙容器加入2mol NH3，达平衡时，吸收的热量为Q2．已知Q2=4Q1，则甲容器中，H2的转化率为（　　）A．20%B．25%C．75%D．80%