钢筋混凝土超静定结构中存在内力重分布是因为（）

Australian Aborigines believed in a creative period, usually referred to in English as ________.

Australia, which is one of the world's developed countries, has become rich through ________.

Australia is located between ________ and the Indian Ocean.

如图2所示的5跨连续梁，当计算第四跨跨中出现最大弯矩时的活荷载布置为（）

The theme of Thanksgiving has always been ________.

In “ Song of Myself ” , Whitman writes that ________.

The functions of institutions of higher education in the U.S. are ________.

矩形简支双向板，板角在主弯矩作用下（）

简支梁式楼梯，梁内将产生的内力为：（）