问题
单项选择题
木材的枋材为断面宽与高之比小于( )的制材。
A.3.0
B.3.5
C.2.0
D.2.5
答案
参考答案:A
解析: 按建筑型材分类分为:原木,板材,枋材。原木:伐倒后经修枝后按一定长度锯断的木材。板材:断面宽度为厚度的三倍及三倍以上的型材。枋材:断面宽度不及厚度三倍的型材。
木材的枋材为断面宽与高之比小于( )的制材。
A.3.0
B.3.5
C.2.0
D.2.5
参考答案:A
解析: 按建筑型材分类分为:原木,板材,枋材。原木:伐倒后经修枝后按一定长度锯断的木材。板材:断面宽度为厚度的三倍及三倍以上的型材。枋材:断面宽度不及厚度三倍的型材。
基本语法选择合适的介词填空 | |
2. We left Hang Zhou ________the afternoon of October 15. 3. He called me__________ Sunday morning. 4. He had an accident________12 o’clock last Sunday. 5. They arrived________ this time yesterday. 6. My daughter was born ______ Julyl961. 7. The First World war broke out ______ 1941 and ended_____1918. |