问题
填空题
轧制生产的成品，根据钢材断面形状，主要分成板材、管材、（）三大类.
答案
参考答案：型材
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轧制生产的成品，根据钢材断面形状，主要分成板材、管材、（）三大类.
参考答案：型材
| 用所给动词的适当时态填空。 | |
2. We ________ a room next year, shan't we? 3. He became a teacher three years ago, and now he ________ well. 4. You ________ a student two years ago, right? 5. The teacher asked who ________ the book. 6. They ________ a meeting tomorrow, aren't they? 7. He ________ to his parents when I went to see him last night. |