單項(xiàng)選擇題如果預(yù)應(yīng)力筋的實(shí)際伸長(zhǎng)值比計(jì)算伸長(zhǎng)值大于10%或(),應(yīng)停止張拉,待采取措施予以調(diào)整后才可繼續(xù)張拉

A.相差1%
B.相差2%
C.小于5%
D.5%