压接后六角形对边尺寸应为0.866D，当有任一个对边超过0.866D+0.2mm时更换钢模（D为接续管外径）
参考答案：对
There are many things we need to know, but we do not learn them at school. For example, if we want to use our money wisely, we need to shop carefully. We need to know how to compare(比较) the prices of the things in different shops. We also need to know how to make the best choice when we shop .
Knowing how to make such choices is a life skill, and we need to practice it in our daily life.
小题1:Which supermarket has the longest Business hours?
A．Supermarket M.
B．Supermarket T.
C．Supermarket Y.
D．Supermarket W.小题2:From above, which supermarket may have the fewest shoppers?
A．Supermarket W.
C．Supermarket M.
D．Supermarket Y.小题3:What may be the reason if a shopper usually shops in Supermarket Y?
A．The environment.
B．The Business hours.
C．The Price.
D．The Service.
相关收入
