题目内容

在排序算法中，两两比较待排序的记录，当发现不满足顺序要求时，变更它们的相对位置，这就是(1)排序。每次从未排序的记录中挑出最小(或最大)关键码值的记录，加入到已排序记录的末尾，这是(2)排序。

A. 插入
B. 枚举
C. 交换
D. 归并
E. 基数

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收集了n组数据(xi，yi)，i=1，2，…，n，在一元线性回归中用SR表示回归平方和，SE表示残差平方和，由此求得F比，则当()时在显著性水平α上认为所得到的回归方程是有意义的。

A. F＞F1-α(1，n)
B. F＞F1-α(1，n-1)
C. F＞F1-α(1，n-2)
D. F＜F1-α(1，n-2)

听力原文：W: Hi. Can I help you？
M: Hi. I've, uh, just opened a checking account and I want to withdraw 150 euros. What I want to know is, who do I make the check out to？
W: Well, since the money is for you yourself, you make it out to cash.
M: OK. W... how do I do that？
W: You just write the word "cash" on this line.
M: This line here？
W: Yes, next to "pay to the order of".
M: OK. C-A-S-H. Now, I want to make this 150 euros. There, howls this？
W: Well, you've written the amount in numbers, but you have to write it out in words, too. That goes on the second line, there.
M: Oh, yeah.
W: By the way, it's a good idea to draw a line from the end of the amount to the word "euros" so nobody can change the amount.
M: Oh, thanks. Well, tlaat should do it. Here you go.
W: You forgot to sign your name. There, in the bottom right corner.
M: Woops, sorry. Here you go.
W: The date.
M: W... huh？
W: The date--you forgot it. It goes in the top right corner.
M: Oh, right. OK, am I done？
W: Yes, That's fifty--a hundred--a hundred and fifty euros.
M: Thanks a lot. Have a good day!
W: You too.
(9)

A bank clerk and customer.
B. Waiter and diner.
C. Professor and student.
D. Manger and secretary.

双肺弥漫分布，以中下肺野为主的网状密度增高影，为

当已计提跌价准备的存货价值以后得以恢复,其冲减的跌价准备金额,应以“存货跌准备”科目的余额冲减至0为限。()

A. 正确
B. 错误