氧化铁皮主要用于调整氧化渣的化学成份，提高渣中FeO的含量，降低炉渣熔点，改善炉渣流动性有利去磷。
参考答案：对
简述FTE的组成。
— People should start using public transport instead of using their private cars.
— _________ . The streets in Shandong are too crowded as it is in Jinan.
A．All right
B．Exactly
C．Go ahead
D．Fine
