题型:选择题 _____ the people have become masters of their country _____ science can really serve the people. [ ]A. It is only then; that B. It was that; when C. It is only when; that D. It was when; then 查看答案
题型:单项选择题 男,45岁,有高血压史。因阵发性心悸2天来诊,体检:血压120/70mmHg,心率180次/分,律齐,心音正常,无杂音。1分钟后心率降至80次份,律齐。30秒后又回复至180次/分。最可能的诊断为()。A.窦性心动过速B.阵发性心房颤动C.阵发性室上性心动过速D.阵发性心房扑动E.第三度房室传导阻滞 查看答案
题型:单项选择题 在选择外部供货生产商时,评价标准按照重要性的排列顺序是:()1.供货商与信息系统部门的接近程度2.供货商雇员的态度3.供货商的信誉、专业知识、技术4.供货商的财政状况和管理情况A.4,3,1,2B.3,4,2,1C.3,2,4,1D.1,2,3,4 查看答案