梁下部钢筋的排距用什么定位?
参考答案:用直径25mm短钢筋。俗称垫棒、垫铁、垫筋。
We really enjoy ourselves at the party. Thanks again, Mr. and Mrs. Brown.()Just drop in whenever you feel like it.
A.Our great honour
B.Nice having you here
C.Nice you are here
D.With pleasure
教育目的可以分为()的教育目的和()的教育目的
A.集体,个体
B.社会,个人
C.主观,客观
D.宏观,微观