中级

单选题请回答21_________题。

参考答案:F进入在线模考
Woman: It has been decided that the factory's  going to introduce 15 robots into this section next  month. I've heard they can do better than 100  workmen. I wonder what we're arranged to do  next, I'm really worried about losing my present  job, because my family depends totally on my  salary.