单项选择题屋面女儿墙、山墙、天窗、变形缝、天沟等处的弯起部分应按图示尺寸,如 A. 无规定时,女儿墙和缝弯起高度可按( )mm计算。 B. 200 C. 300 D. 400 E. 500
单项选择题In the Student Research Project, in which Alex, Abbas, Jiehan and Huanrui had a deeper discussion on the topic of _______.