学校课外兴趣小组的同学们为测定某生铁样品（假定其中只含单质铁和单质碳）中铁的质量分数。他们各称取10g生铁样品分别放到相同浓度、不同质量的稀硫酸中，充分反应后，分别得到如下数据：

（1）试计算该生铁样品中铁的质量分数。

（2）若要炼得这种生铁100t，需要含Fe₂O₃80%的赤铁矿多少吨？

This air crash which was suspected to be plotted by international political terrorists led to the stop of the diplomatic relations between the two countries.

A．suspensory

B．sustenance

C．suspicion

D．suspension