闭环数控机床的检测装置,通常安装在伺服电机上。()
参考答案:错
两个数的最小公倍数是252,最大公约数是7,并且两个数中的大数不是小数的倍数,则这两个数是______.
---Hi. Lucy! What’s wrong with you? You look so worried.
---I have many problems to solve, but I don’t know ___________ first.
A.how to deal with
B.when to deal with
C.what to deal with
D.how to do with