我脑子糊掉了，求答案。。。。。。
Study the numbers in set A. Complete the sentences so that they are correct.
A=144,273,50,18,705,1001,850
a All these numbers:
b Not all these numbers:
c None of these numbers:
d There is at least one number which:
e There is at least one number which is not:
评论
a All these numbers: are positive numbers
b Not all these numbers: are even numbers
c None of these numbers: are negative numbers
d There is at least one number which: are odd numbers
e There is at least one number which is not: prime number
分分呢
评论
感谢楼上的同学。
评论
这是几年级的题目啊？
评论
求教:什么是prime number?
评论
质数, 或者叫素数
评论
评论
这是几年级的题呀？
评论
好难
评论
A=144,273,50,18,705,1001,850
a All these numbers are not 0 (或者 All these numbers are natural numbers)
b Not all these numbers are 0
c None of these numbers is 0
d There is at least one number which is not 0 (或者There is at least one number which is 144 )
e There is at least one number which is not 0
评论
评论
三年级，Yiming math 上的。只有题目，没有答案。
评论
三年级，Yiming math 上的。
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