Your bike needs_____.You ‘d better do i right now.
A. clean
B. to be clean
C. being cleaned
D. to clean
I don ‘t feel like_____anything now.
A. to eat
B. eating
C. having eaten
D. to be eating
按弹性理论计算单向板肋梁楼盖时,板和次梁采用折算荷来计算的原因是()
A. 考虑到在板的长跨方向也能传递一部分荷载
B. 考虑到塑性内力重分布的有利影响
C. 考虑到支座转动的弹性约束将减小活荷载隔跨布置时的不利 影响