【判断题】后张法施工预应力混凝土构件时,当预应力筋采用单根粗钢筋时,配套的锚具宜采用 螺丝端杆锚具
【简答题】在预应力混凝土构件制作的后张法张拉施工中,对预应力筋张拉时,构件混凝土强度应符合设计要求;当设计无要求时,其强度应保证( )。
【单选题】客房服务中心的服务模式,首先在我国()饭店出现,然后在其他饭店逐步推广。
【单选题】在预应力混凝土构件制作的后张法张拉的施工中,对预应力筋张拉时,构件混凝土强度应符合设计要求;当设计无要求时,其强度应保证()。
【单选题】Where does David's uncle live?
A.
David's uncle lives in Zhengzhou.
B.
David's uncle lives in Beijing.
C.
David's uncle lives in Qingdao.
D.
David's uncle lives in Hainan Island.
【简答题】情景交际。 David: Where would you live if you could choose? Jane: It's very difficult to say. 1 David: What would you do if you lived in Paris? Jane: 2 David: You'd soon get tired of it. 3 Jane: I wouldn't...
【单选题】Why did Donna come to the town where David lives?
【单选题】— David, where have you ______ recently? — I have ______ to Shanghai with classmates.
【简答题】在预应力混凝土构件制作的后张法张拉的施工中,对预应力筋张拉时,构件混凝土强度应符合设计要求;当设计无要求时,其强度应保证( )。