【简答题】妇科腹部手术伤口的感染一般发生在手术后第 天左右。
【单选题】寄生于羊的大型肺线虫是(2010 真题上148)
【多选题】大学生安全教育的必要性主要有以下哪几点?
【单选题】Which is not mentioned in the conversation?
【简答题】Calvin is mentioned in this article to show ______.
【简答题】Which of the following is NOT mentioned in the passage?
【简答题】A.She misplaced class card for biology. B.She arrived for registration too early. C.She missed registration. D.The man cannot spell her name.
【简答题】计算: 2tan60° 1 -tan 2 30° - 1-tan45°tan60° tan45°+tan60° =______