【判断题】It can be harmful if you are so engrossed that you overrun the time you have set yourself.
【判断题】对文法中的某个非终结符A,无法从它推出任何终结符号串来,则有A出现的规则都为多余规则。
【单选题】—You have set aside more time to play with our kids. —I wish I ______, but you know how busy I was.
【单选题】( ) you have set out to do the work,you should try your best to finish it.
【判断题】You want to make sure that the goal you have set can actually be achieved.
【单选题】If you have set up a signature on your word processor, you can’t insert it under your name.