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举一反三
【单选题】Why does the woman want to take a leave
A.
To visit her aunt and uncle.
B.
To see the National Gallery.
C.
To see the Southern Highlands.
D.
To study more writing.
【单选题】It was fifteen past nine as Marie hurried into the office building where she was going to work Her bus had inched along through heavy morning traffic, making her a few minutes late for her very first ...
A.
she had been there only once
B.
Mr. Smith was not in the office
C.
nobody was doing any work
D.
the office had a new appearance
【单选题】若F1=669.5kN，g+q=12.1kN/m2，C30混凝土，HPB235级钢筋um=2847mm，η=1.0。上图中洞口距柱边700mm，则仅采用箍筋作为受冲切钢筋所需的箍筋面积Agvu=（）mm2。 A．1966.7 B．2288.8 C．2458.4 D．2581.3
A.
无梁楼板，柱网尺寸为7.5m×7.5m，板厚200mm，中柱截面尺寸为600mm×600mm，安全等级二级，环境类别为一类。