问题
填空题
根据许多高炉实践证明，要起到护炉的作用，可在炉料中加入TiO2正常的加入量应维持在（）铁左右较好。
答案
参考答案：5kg/t
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根据许多高炉实践证明，要起到护炉的作用，可在炉料中加入TiO2正常的加入量应维持在（）铁左右较好。
参考答案：5kg/t
| 请根据句意从方框中选择合适的动词，并用其适当时态填空，使句子通顺。 | |
2. I __________ this magazine. Will you please show me another? 3. 一Can you hear some students singing in the hall? 一Yes. Our school __________ a red-song competition there. 4. I __________ to past the letter on my way here this morning. I'll do it this afternoon. 5. 一Why are you in a hurry, John? 一My classmates are waiting for me at the school gate. We __________ trees in the park. |