轻质粘土砖是一种常用的隔热用砖。
参考答案：对
单向板肋梁楼盖的结构布置一般取决于________要求，在结构上应力求简单、整齐、经济、适用。柱网尽量布置成________或________。主梁有沿________和________两种布置方案。
The road became narrower and rougher and _______ disappeared. [ ]
A. eventually
B. financially
C. profoundly
D. definitely
