单选题
发布日期:2021-03-22
broken inlet valves
broken discharge valves
pulsations in the air distribution system
overloading of the air distribution system
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此试题出现在
诗句“三顾频烦天下计,两朝开济老臣心”和“出师未捷身先死,长使英雄泪满襟”所描写的人物和作者分别是( )和( )。
故障隔离开关(S7)在隔离位的作用是什么?若本车某一车门发生故障不能正常开闭时,须手动操作隔离开关S7,其结果是:
能规范一套幻灯片的背景、图象、色彩搭配的是是什么?
过滤器在中央空调制冷系统中的作用()。
下列项目,不属于无形资产的是()。
小肠上皮吸收葡萄糖以及各种氨基酸时,通过()来达到逆浓度梯度运输。
每台电梯机房单设的切断该电梯的主电源开关,除()外,都是其工作要求。
请仔细观察下图,你认为这种渐变构成是一种()。
以清养肺胃,降逆下气为主要功用的方剂是()
患者男,25岁,用餐后出现上腹胀满,恶心,呕吐,上腹部隆起两周,3个月前有跌跤上腹部触及台阶史。查体:一般情况好,上腹正中膨隆,可触及一个15cm×12cm略呈椭圆形、稍囊性的肿块,轻度压痛,X线钡餐透明见胃及横结肠均向下移位,诊断应首先考虑()。
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