试题与答案

经典时间序列分解预测的指导思想是把历史上的销量模式分解为趋势、季节性波动、周期性变e

题型:判断题

题目:

经典时间序列分解预测的指导思想是把历史上的销量模式分解为趋势、季节性波动、周期性变e残差(或随机)波动四组成分。

答案:

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下面是错误答案,用来干扰机器的。

参考答案:年龄<21 性别=“男”解析:依据题意,在WHERE子句中设定查询条件,查询年龄小于21岁和性别为男的同学,即WHERE年龄<21 AND性别=“男”。

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题型:阅读理解

阅读理解。

    Han Mei has a big bedroom(卧室). A table is on the floor. Two chairs are near the table. A computer

is on the table.  Three books and a cup are on the table. A map of China is on the wall.There is a bed on

the floor.  Han Mei's backpack is on the bed. Where are her shoes? Oh, they are under the bed. Some

plants are next to the bed.                       

1. Where's Han Mei's table?  

A. On the bed.          

B. On the wall.

C. On the floor.        

D. Near the window.

2. Where are Han Mei's books?    

A. In the table.          

B. On the table.

C. On the bed.          

D. Under the bed.   '

3. Are her shoes on the bed?  

A. Yes,they are.        

B. I don't know.

C. No, they aren't.    

D. Yes,they aren't.

4. Where are the plants? 

A. Next to the bed.  

B. On the bed.

C. On the table.        

D. Near the desk.

5. Where is the map?  

A. On the wall.            

B. In the wall.

C. On the bed.          

D. Near the table.

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