1、图中有四条互相不平行的直线L1、L2、L3、L4所截出的七个角。关于这七个角的度数关系,下列何者正确( )
初中数学试题

Quiz
•
Mathematics
•
6th - 8th Grade
•
Medium

迪娜古丽 哈力木
Used 17+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
∠2=∠4+∠7
∠3=∠1+∠6
∠1+∠4+∠6=180°
∠2+∠3+∠5=360°
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
-3/7的绝对值是
-3/7
-7/3
3/7
7/3
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列方程中属于一元一次方程的是
x^2=9
x-6=2
1/(x-2)=8
x+y+z=7
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
-3的相反数是
3
1/3
-1/3
-3
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列事件为必然事件的是
打开电视机,它正在播广告
正数大于负数
汽车经过红绿灯路口时,前方正好是绿灯
抛掷一枚硬币,正面一定向上
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
正八边形中心角的度数是
30
45
60
90
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
在平面直角坐标系中点A(3,-1)关于原点的对称点的坐标是
(-3,1)
(3,1)
(-3,-1)
(1,3)
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