当病人出现呕血时,提示胃内潴留血量至少达到()
A.5~10ml
B.50~100ml
C.150~200ml
D.250~300ml
E.350~400ml
参考答案:D
From the dates__________on the gold coin, we decided that it was made five hundred years ago.
A.marking
B.marked
C.to be marked
D.having been marked
30~35:
某单层、单跨、无吊车仓库,如题图所示。屋面为装配式有檩体系钢筋混凝土结构;墙体采用MU15蒸压灰砂砖,M5砂浆砌筑,砌体施工质量控制等级为B级。外墙T形特征值详见题表。
假定取消①轴线山墙门洞及壁柱,改为钢筋混凝土构造柱GZ,如题32图所示,试问,该墙的高厚比验算结果(β=
μ1μ2)与下列()项最为接近。
A.β==24.17<μ1μ2[β]=26.16
B.β==23.47<μ1μ2[β]=24
C.β==25.55<μ1μ2[β]=26.16
D.β==10<μ1μ2[β]=26.16