房屋建筑按结构承重方式可分为几种
参考答案：房屋建筑按结构承重方式可分为墙承重、骨架式承重、内骨架式承重、空间结构承重式。
—What a beautiful city Wenzhou is!
—Yes. Wenzhou ______ a lot in the last few years. [ ]
A. is changing
B. has changed
C. changing
D. changed
食盐的主要呈味成分是氯化钾。( )
