钢包喂线的作用是()。
A.脱氧
B.脱硫
C.非金属夹杂物变性处理和合金化
D.提高钢的纯净度
E.优化产品的使用性能
参考答案:A, B, C, D, E
关于“四级办”模式,下列说法不正确的是()。
A.条块结合
B.四级办广播,四级办电视
C.四级混合覆盖
D.以条为主
Instruction: Write an essay in around 300 English words on the following subject:What Is a Good Translator What are, in your opinion, the 3 basic qualifications a good translator should have Give your reasons. Your essay should consist of a lead-in paragraph, a concluding one and the body.