什么是曲率系数（cc）？
团体心理治疗经常简称为（） ["心理治疗","团体治疗","心理辅导","团体心理辅导"]
I sounded five short blasts to warn the vessel（）the immediate danger of collision. ["of","off","to","with"]
日常宣传是税务机关在（）中开展的宣传。 ["日常工作","重点工作","专项工作","特别工作"]
螺栓的哪一特性不会对拧紧质量造成影响（）。 ["强度等级","摩擦系数","外形尺寸","包装材质"]
简述SBS卷材和APP卷材的主要不同点。
