單項(xiàng)選擇題在連續(xù)梁的支座處,可用鉛絲將無粘結(jié)預(yù)應(yīng)力筋綁扎在非預(yù)應(yīng)力筋骨架上,為保持無粘結(jié)預(yù)應(yīng)力筋的曲線形狀,其綁扎點(diǎn)間距?。ǎ﹎為宜

A.0.1~0.3
B.0.4~0.6
C.0.7~1.0
D.1.1~1.4