
概念辨析
Quiz
•
Mathematics
•
7th Grade
•
Medium

Tess 唐
Used 17+ times
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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
在下列选项中,具有相反意义的量是
上升了6米和后退了7米
卖出10斤米和盈利10元
收入20元与支出30元
向东行30米和向北行30米
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
关于有理数说法正确的是
3.14不是分数
不带" - "号的数都是正数
0是自然数也是正数
能写成分数形式的数称为有理数
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列说法中,正确的是
正整数和负整数统称为整数
整数和分数统称为有理数
零是最小的数
有理数可以分为正有理数和负有理数
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列说法中,正确的是
非负数一定是正数
有最小的正整数,也有最小的有理数
若在一个数前面加上" - "号,则这个数一定是负数
最大的负整数是 -1
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列说法正确的是
0是最小的整数
任何数的绝对值都是正数
-a 是负数
绝对值等于它本身的数是正数和0
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列说法正确的是
所有的整数都是正数
整数和分数统称有理数
0是最小的有理数
零既可以是正整数,也可以是负整数
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列说法正确的是
0是最小的有理数
非负有理数就是正有理数和0
正整数和负整数统称为整数
有理数分为正有理数和负有理数
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