由低合金钢加工而成的钢筋有( )。 A.热轧光圆钢筋 B.热轧带助钢筋 C.冷轧带 发布时间:2017-07-16 03:41 │ 来源:www.tikuol.com 题型:多项选择题 问题: 由低合金钢加工而成的钢筋有( )。A.热轧光圆钢筋B.热轧带助钢筋C.冷轧带肋钢筋D.热处理钢筋E.冷拔低碳钢丝
题型:多项选择题 a written permission, he had to write another letter to the president of the university.A.Not givingB.Not having been givenC.Having not givenD.Having not been given 查看答案