It was the first of 14 records in a row that sold over a million copies each.这句话是强调句吗?如果是的话，sold的主语是the first，还是14 records？后面的each是怎么回事
网友回答
不是强调句,it是主语（唱片）,was是系动词,the first of 14 records 是表语,后边修饰the 14 records.
======以下答案可供参考======
供参考答案1:
是强调句，一个句子如果去掉it was , that 这些词，如果句子意思还完整就是强调句。
供参考答案2:
当然是。句型it was ... that..