男，45岁，一周前因急性阑尾炎，进行手术治疗时阑尾系膜出血，缝扎止血时致回肠末段血运障碍，行回肠部分切除吻合术，腹腔引流，间断性引出血性液每日约200ml，查体：腹胀，右侧腹压痛，未触及肿块，肠呜音弱，血压120/82mmHg，R20次/分，白细胞12×10⁹/L，中性粒细胞0.80。

应采取的主要措施是

A．剖腹探查

B．支持疗法

C．腹腔灌洗

D．肠造口术

• (A) 条件(1)充分，但条件(2)不充分．
• (B) 条件(2)充分，但条件(1)不充分．
• (C) 条件(1)和(2)单独都不充分，但条件(1)和条件(2)联合起来充分．
• (D) 条件(1)充分，条件(2)也充分．
• (E) 条件(1)和条件(2)单独都不充分，条件(1)和条件(2)联合起来也不充分．

For a certain performance at a concert hall, a total of 2,350 tickets were sold in the orchestra, first mezzanine, and second mezzanine. How many orchestra tickets were sold
(1) The number of first mezzanine tickets sold was one-half the number of second mezzanine tickets sold.
(2) The total number of first and second mezzanine tickets sold was 50 percent greater than the number of orchestra tickets sold.