问题
单项选择题
钢筋和混凝土的材料性能中,影响粘结强度的主要因素有混凝土强度和()。
A.剪跨比
B.腹筋的数量
C.结构功能
D.保护层的厚度和钢筋之间的净距离
答案
参考答案:D
钢筋和混凝土的材料性能中,影响粘结强度的主要因素有混凝土强度和()。
A.剪跨比
B.腹筋的数量
C.结构功能
D.保护层的厚度和钢筋之间的净距离
参考答案:D
阅读短文,完成表格,在每个城市对应的天气上画“√”。 | ||||||||||||||||||||||||||||||||||||||||||
Now is the weather. In Beijing it will be windy. In Guangzhou it will rain. Don't forget to take your umbrella with you. In Shanghai it will be sunny and warm. It's good to have a walk. In Sanya it will be hot You can go swimming. In Harbin it will snow. So put on more clothes.
|