A.Because she is ill. B.Because she lost her job.C.Because she is not a
A. Because she is ill.
Because she lost her job.
C. Because she is not a teacher.
D. Becauseshe gets another job.
属于出血性炎的是
A. 空洞性肺结核
B. 细菌性痢疾
C. 小叶性肺炎
D. 钩端螺旋体病
()是应急机制的基础,也是整个应急体系的基础。 A.应急救援的范围和体系 B.事故应急预案 C.制定应急预案 D.公众动员机制
根据最新的吊车资料,栈桥柱吊车肢最大压力设计值NAE=1204kN,原设计柱肢截面为H400×200×8×13(A:8412mm2,iX=168mm,iy=45.4mm),当柱肢AE按轴心受压构件的稳定性验算时,试问,柱肢最大压应力(N/mm2),与下列何项数值最为接近? 提示:不考虑柱肢各段内力变化对计算长度的影响。 (A)166.8 (B)185.2 (C)188.1 (D)215.0