第14题: [多项选择]请问对由于湿度变化而引起风化剥蚀部位,进行修补时()。 A. 宜在砂浆或混凝土中加入水泥重量的1/10000左右的加气剂 B. 宜在砂浆或混凝土中加入水泥重量的1/1000左右的加气剂 C. 在砂浆或混凝土中加入加入加气剂总量不超过5% D. 在砂浆或混凝土中加入加入加气剂总量不低于过5% 参考答案:A, C
第30题: [单项选择]A. Right after the father gives everyone some wine. B. Right after the father makes the cross over the bread with a knife. C. Right after the mother slices the bread for each member of the family. D. Right after the father gives each member a piece of bread. 参考答案:C 答案解析:[听力原文] When does the French family meal normally start