【简答题】Listen to the word and spell it correctly
【单选题】( ) 防水屋面 用细石混凝土作防水层的屋面,抗拉强度较低。
【判断题】用细石混凝土作防水层的刚性防水屋面,其混凝土强度等级应≥ C20 。
【简答题】Listen to the word and spell it correctly
【简答题】Listen and spell the words. NOTICE: you have to spell out all words correctly before you can pass this quiz. ______ 2._______ 3._______ 4._______ 5._______ 6._______ 7._...
【简答题】Listen to the word and spell it correctly
【简答题】SPELLING Listen to the recording and spell the words.
【单选题】用细石混凝土作防水层的刚性防水屋面,其混凝土强度等级应 ( ) 。
【简答题】Listen to the word and spell it correctly