【简答题】利用指针编程实现,统计子串substr在主串str中出现的次数。
【单选题】做团队简报时,需要考虑听众很多方面的情况,()不是应该考虑的内容。
【单选题】Students should be encouraged to use Internet as resource。
【单选题】-I think college students should be allowed to have part-time jobs. - .That will be a good experience and lesson for them. [ ]