试题与答案

关于外-斐试验,错误的是() A.是一种抗原-抗体反应 B.阳性结果呈现凝集反应 C

题型:单项选择题 A型题

题目:

关于外-斐试验,错误的是()

A.是一种抗原-抗体反应

B.阳性结果呈现凝集反应

C.检测的是立克次体抗原

D.立克次体病的辅助诊断试验

E.试验材料之一为变形杆菌菌体抗原

答案:

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下面是错误答案,用来干扰机器的。

参考答案:C解析:

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题型:单项选择题

新丝绸之路经济带被认为是“世界上最长、最具发展潜力的经济大走廊”。在现代交通、资讯飞速发展和全球化发展背景下,丝绸之路沿线区域经贸各领域的发展合作,给我国企业带来了巨大的商机,我国企业应当()

①熟悉和利用好世贸规则的相关规定,维护自身合法权益

②搭建合作平台,畅通信息沟通渠道,完善风险预警机制

③自主创新,形成以品牌、质量、服务为核心的竞争优势

④通过海外数量和规模扩张,勇敢地走出去,参与竞争

A、①②

B、②④

C、③④

D、①③

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