问题
解答题
因为42÷7=6，所以42是7的倍数，7是42的约数．______．
答案
根据因数和倍数的意义可知：42÷7=6，则42÷6=7，所以42是7的倍数，7是42的约数；
故答案为：正确．
搜题请搜索小程序“爱下问搜题”
因为42÷7=6，所以42是7的倍数，7是42的约数．______．
根据因数和倍数的意义可知：42÷7=6，则42÷6=7，所以42是7的倍数，7是42的约数；
故答案为：正确．
补全对话（共5小题；每小题1分，满分5分） A：Today we are going to talk about a great invention．It looks like a human being． 小题1: B：It’s a robot．小题2: A：Of course not．The first robot was invented in 1921． B：小题3: A：Sure．They can take the place of humans to do some boring work．They can also do a lot of dangerous work instead of humans． B： 小题4: A：No．Robots can do a lot of work instead of people in many ways，but people wouldn’t be replaced by robots． 小题5: B： We get it．
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