确定深昏迷最有价值的体征为() ["血压下降","对疼痛无不良反应","呼之不应","眼球固定","全身反射均无"]
毕Ⅰ式胃大部切除术后并发症可能有() ["胃肠吻合口瘘","吻合口梗阻","碱性反流性胃炎","十二指肠残端破裂","吻合口出血"]
活塞式压缩机的活塞往复一次就完成了吸气、压缩、排气和膨胀四个过程。
下列哪种物质不是缩血管物质() ["激肽","去甲肾上腺素","儿茶酚胺","血栓烷A2(TXA2)","血管加压素"]
关于电接触烧伤的特点和处理正确的是() ["不宜反复探查、清创","早期输液严格按烧伤面积计算","采用包扎疗法","易发生继发性出血","组织可进行性坏死"]
怎样测量钢丝绳直径?