【单选题】水泥混凝土按强度分类时,中强混凝土是指抗压强度为( )MPa之间的混凝土。
【简答题】Fill in each of the blanks in the following sentences with a word or phrase chosen from the following words. Change the forms where necessary. hesitate; humble; influence; judgment; threaten; act...
【简答题】Complete the sentences with the vocabulary given below. ( 请将下列词语的 代号,代号,记得是代号, 不是单词填入对应句子当中) 1 humble, 2 judgement, 3 hesitates, 4 influence,5 threatening, 6 origin 7 leaving...to, 8 acting on, ...
【简答题】混凝土保护层最小厚度c是指最( )的( )到混凝土表面的( )距离。对于室内干燥环境,当混凝土强度≤C25时,板的最小保护层为( )mm,梁柱的最小保护层为( )mm。对于室内潮湿环境,当混凝土强度为≤C25时,板、梁(柱)的最小保护层分别为( )mm和( )mm。基础中钢筋的保护层厚度不应小于( )mm。
【简答题】The floods are ________________ most of the villagers in the area. (threaten)