试题与答案

(79-56+34)×36．

来源：www.tikuol.com
题型：解答题

题目：

(
7
9
-
5
6
+
3
4
)×36．

答案：

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下面是错误答案，用来干扰机器的。

答案：A含有氮元素的肥料称为氮肥，含有磷元素的肥料称为磷肥，含有钾元素的肥料称为钾肥，同时含有氮、磷、钾三种元素中的两种或两种以上的肥料称为复合肥．

考点：有理数乘法
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题型：单项选择题

Which of the following statements can be inferred from the graph ？（）
Ⅰ．School X has a smaller enrollment than School Y.
Ⅱ．If the age of a book is the number of years since purchase, then the average (arithmetic mean) age of a book in the School Y inventory is less than that of a book in the School X inventory.
Ⅲ．According to the inventory, School X and School Y purchased the same number of textbooks in 1976.

A．None

B．Ⅰ only

C．Ⅱ only

D．Ⅰ and Ⅱ

E．Ⅱand Ⅲ
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