后张法预应力筋锚固后的外露多余长度不宜小于预应力筋直径的1.5倍,且不应小于()
A.25mm
B.30mm
C.20mm
D.35mm
参考答案:B
大型客车、货运车在设有中心双实线、中心分隔带、机动车道与非机动车道分隔设施的公路上行驶,最高车速为()。
A、60km/h
B、70km/h
C、80km/h
D、90km/h
What is the student’s attitude toward the language club
A. He wants to join the club.B. He thinks the charge is high.C. He thinks the activities are dull.D. He likes the debate group best.