下列各式中,( )符合乘法分配律. A.(25+1)×4=25×4+4 B.3×

题型:选择题

问题:

下列各式中,(  )符合乘法分配律.

A.(25+1)×4=25×4+4

B.3×10=5×6

C.43+25+57=(43+57)+25

D.4×9×25=(4×25)×9

考点:运算定律和简便算法
题型:选择题

读短文,选择。

Hello, Mike,

     OK, I will tell you about our school. It is not big and there are two classrooms. How many students

do we have? Only ten.  We usually go to school from Monday to Friday. We like holidays because we

don't go to school on holidays.  We usually have three classes in the morning and two classes in the

afternoon.  We usually-have reading, writing and math.  We don't have music because we don't have

music teacher in our school. Sometimes we have P. E.  class but not always:  We like P. E. class

because we can play games !                                                     

                                                                                 Yes    No

1. It's a small school.                                                    □     □

2. The school has ten teachers.                                     □     □

3. They usually have five classes every day.                  □     □

4. They have music every week.                                   □     □

5. They never have P. E. class.                                     □     □  

题型:选择题
解为
y=-3
x=0
的方程组是(  )
A.
3x+2y=1
2x-y=3
B.
3x+2y=-6
x-y=3
C.
7x-
1
3
y=1
x+2y=3
D.
x+y=1
5x-y=3
题型:选择题

违拗是一种()。

A.认知功能失调

B.意志行为障碍

C.人格结构变化

D.精神运动兴奋

题型:选择题

— Have you seen the film Under the Hawthorn Tree?

— Of course, I have. It was in our village ________ it was made. [ ]

A. that  

B. where

C. when  

D. which

题型:选择题

珠算是以算盘为工具进行数字计算的一种方法,被誉为中国的第五大发明。2013年12月4日,联合国教科文组织正式将中国珠算项目列入人类非物质文化遗产名录。这表明()

①珠算是人类共同的文化财富

②传统文化对社会与人的发展起积极作用

③中华文化博大精深表现为一方水土,一方文化

④我们应该树立高度的文化自觉和文化自信

A.①②

B.③④

C.②③

D.①④

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