未知题型 听力原文： The UN Security Council has unanimously adopted a resolution renewing the UN peace-keeping force in Rwanda for another 6 months while reducing its size by more than half. (26[C]) The UN resolution authorizes the reduction of the UN assistance mission in Rwanda (25[A]) from 5000 troops to 2300 troops within three months and to 1800 troops within four months. The resolution is a compromise between a proposal by UN Secretary General to cut the UN force in half and Rwandans' wish for an even larger reduction. Rwandan authorities say they have assumed responsibility for national security following last year's Hutu-led genocide, reducing the need for UN peace-keeping. (26[B], [D]) The UN force will also help with the training of the national police force and with the delivery of humanitarian aid.The reduction of ______ UN peace-keeping troops within 4 months from Rwanda is authorized.A．5000B．2300C．3200D．1800

未知题型 一般大吨位起重机较多采用（ ），对起重机站位处的地基的要求相对较低，但行走速度较慢，转移场地需要用平板拖车运输。

单项选择题 男性，20岁，既往有消化道溃疡病多年，大量饮酒后6小时，突发上腹部疼痛，并出现腹胀，服抗生素后不能缓解，症状加重，逐于6小时后急诊求治根据病人的临床表现，不应考虑的诊断是（ ）