3D电影是利用人双眼的视角差和会聚功能制作的。这个说法对吗?
如何显示今天是星期几(周一到周日,分别用1~7表示)() ["select to_char(sysdate,'D') from dual;","select to_char(sysdate,'W') from dual;","select to_char(sysdate,'D')-1 from dual;","select to_char(sysdate-1,'D') from dual;","select to_char(sysdate-1,'W') from dual"]
在轿车四轮定位参数中,哪一项易于调整() ["前轮外倾","前轮前束","主销后倾","主销内倾"]
螺旋藻具有一定的抗辐射损伤作用。这个说法对吗?
金缕梅科植物叶的特征为() ["单叶轮生","单叶互生","单叶对生","单叶簇生"]
违背发货时间承诺指什么?