对氧化锌压敏电阻(MOV)须每()月检查一次是否破坏。 发布时间:2017-04-20 01:06 │ 来源:www.tikuol.com 题型:填空题 问题: 对氧化锌压敏电阻(MOV)须每()月检查一次是否破坏。
题型:填空题 一名儿童患低热、阵发性痉挛性咳嗽,偶有特殊的"鸡鸣"样吼声。患者鼻咽分泌物涂片镜检可见革兰阴性短小杆菌,咳痰涂片荧光抗体染色镜检亦可见病原菌。此病可初步判断为()A.百日咳杆菌感染B.肺门淋巴结结核C.肺炎链球菌感染D.葡萄球菌感染E.流行性感冒 查看答案
题型:填空题 More consumers are waiting for the further drop of housing prices with money in their hands _ buying houses, according to a report.A.no better thanB.little more thanC.other thanD.rather than 查看答案