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【单选题】

广告牌的荷载计算时迎风朝向影响很大,以下()朝向应考虑加大风阻计算值。

A.
背风
B.
迎风
C.
侧风
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参考答案:
参考解析:
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【单选题】图示梁在已知荷载作用下,B截面弯矩 MB 和B右侧截面剪力右 分别为()

A.
32kN·m(上侧受拉)和-16kN
B.
32kN·m(下侧受拉)和16kN
C.
64kN·m(上侧受拉)和-16kN
D.
64kN·m(上侧受拉)和16kN

【单选题】下列( )为偶然荷载?

A.
土压力
B.
地震荷载
C.
雪载
D.
风载

【单选题】Media Selection for Advertisements After determining the target audience for a product or service, advertising agencies must select the appropriate media for the advertisement. We discuss here the ...

A.
such ads have been made much more attractive
B.
billboards can be replaced within two hours
C.
consumers travel more now than ever before
D.
the pace of urban life is much faster nowadays

【单选题】人群荷载属于_______。

A.
永久作用;
B.
可变作用;
C.
偶然作用;
D.
其他可变荷载。