方差分析是一种检验多个总体均值是否相等的统计方法。
参考答案：对
下列选项默认的布局管理器不是BorderLayout的是______。
A．Window
B．Panel
C．Frame
D．Dialog
.
_______he is working much harder, he won’t have any trouble passing the entrance exams.
A．Ever since
B．In case
C．Even though
D．Now that
