高层建筑内400㎡的观众厅、会议厅、多功能厅宜设置在：( )

The children and their parents had great fun_______game...

单项选择题The children and their parents had great fun_______games in the park．

I asked him to go to the art exhibition, but he said he...

单项选择题I asked him to go to the art exhibition, but he said he had_______seen it．

函数ψ(t) 构成正交分数阶小波的充要条件是矩阵M(ucscα) 是酉矩阵。

判断题函数ψ(t) 构成正交分数阶小波的充要条件是矩阵M(ucscα) 是酉矩阵。