【多选题】异方差性的后果包括( )
D.
忽视异方差,直接使用普通最小二乘法得到参数估计量方差较大
【简答题】仰卧位检查 月国 绳肌肌力时要防止 的替代作用,检查股四头肌肌力时要 防止 的协调作用。
【单选题】I am worried about Mary who is not clever at all。I don't know whether she can get the job . Don't worry. John is ______than Mary,but he got a good job in a big company.
【简答题】分析案例中的演绎推理三段论 《超生的孩子并不靠社会养活》 这个世上最重要的资源是人本身,而不是石油、煤炭,也不是水和空气。石油在人们不具备使用它的知识之前,根本不是资源。甚至水也是人创造出来的,知识让缺水的以色列成为蔬菜出口国,沙特人也从来都有水可喝。所以,资源是知识创造出来的,也因此资源是动态的,而不是静态的。而人口越多,分工越细,知识创新的可能性就越高,人们“创造”的资源也就越多。因此,人——...
【简答题】仰卧位检查月国绳肌肌力时要防止 的替代作用,检查股四头肌肌力时要
【单选题】More and more, the operations of our businesses, governments, and financial institutions are controlled by information that exists only inside computer memories. Anyone clever enough to modify this in...
A.
most computer criminals who are caught blame their bad luck
B.
the rapid increase of computer crimes is a troublesome problem
C.
most computer criminals are smart enough to cover up their crimes
D.
many more computer crimes go undetected than are discovered
【单选题】下列相对指标的表现形式属于有名数的是( )。
【单选题】采用 CPT 贸易术语达成的交易的交货地点是 ( )。