下面计算中错误的是[ ] A.8.8×1.25=8×1.25+0.8×1.25

若|a|＜2，且a是整数，那么a=______．

将下列句子排序，使之成为一个完整的对话。

A. Who is your music teacher?                

B. My favorite subject is PE.  

C.  Because it's fun.  What about you?        

D. What's your favorite subject?

E.  I don't like PF. I like music.                  

F. Why do you like P F?

G. Miss Green.                              

H.  Yes, we like her very much.

I. Yes, she is really a good teacher.              

J.  Do you like her?

K. Is she funny?

_______________________________________________

高氯酸（HClO₄）是已知酸中最强的酸之一。高氯酸中氯元素的化合价是  [ ]

A．+3

B．+5

C．+6

D．+7

影响经营杠杆系数的因素必然影响财务杠杆系数，但是影响财务杠杆系数的因素不一定影响经营杠杆系数。 ( )

下列不属于我国果蔬加工集中区域省份的是（）。

A.浙江

B.山东

C.河北

D.福建