影响土壤交换性离子有效性的因素有()、()、()。

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问题:

影响土壤交换性离子有效性的因素有()、()、()。

考点:农学土壤学土壤学题库
题型:填空题
已知:x=
2
+1
,y=
2
-1
.求:代数式x2-y2的值.
题型:填空题

词汇考查。

1. It's Sarah's birthday tomorrow. Can you give me your a              ?

2. I have a good c               named Joe.

3. They went to the beach i               of climbing mountains.

4. Many people have their p               computers at home.

5. There are many m               in the room. You'd better not put the food here.

6. My brother keeps a r               as a pet. It's white and it has two long ears.

7. Barry is i              in English, so he is good at it.

8. Look at my photo a              . There are many photos in it.

9. "P              " is another way of saying "gift."

10. The boy reads English for an hour every moring, so he makes p              .

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有关会计软件的全套文档资料以及程序保管期为( )。

A.软件开始使用后5年
B.软件开始使用后10年
C.软件停止使用或有重大修改之后5年
D.软件停止使用或有重大修改之后10年

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我国水资源季节分配特点是[ ]

A、夏秋少,冬春多

B、夏秋少,冬春也少

C、夏秋多,冬春也多

D、夏秋多,冬春少

题型:填空题

特殊业务调整范围()

A.错账调整类

B.跨系统往来类

C.以物抵债业务类

D.Nostro账户利息收支类

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