电冰箱运行时,如冷冻室表面凝结霜层厚度达到10毫米时,会使电冰箱耗电量增加约()。
A.1倍;
B.2倍;
C.1/3;
D.1/5
参考答案:C
Multipurpose Internet Mail Extension (MIME) is a (2) document messaging standard in the Internet enviroment, with MIME, users can send (3) Email messages that include audio, video, graph-ices, and text to any other user of a TCP/IP network. Richtext information can also be (4) into messages. It defines the fonts, formats, and (5) features of a document so the document can be easily (6) on many different types of systems.
A) completeB) compoundC) simple D) efficient
男性,30岁,干部,突起畏寒、高热、剧烈腹痛腹泻、呕吐12小时。起病时在外出差,常在外用餐。查体:体温39.5℃,脉搏100次/分,血压85/60mmHg,急性病面容,轻度失水貌,皮肤弹性稍差,脐周及左下腹轻压痛。肠鸣音亢进。血常规示:Hb160g/L,WBC15×109/L,N0.85.L0.15;便常规示:RBC0~5个/HP,PC(+)/HP,WBC(++)/HP。哪项是正确的()。
A.可以确诊为细菌性痢疾
B.可以排除细菌性痢疾
C.最后确诊取决于大便培养
D.最后确诊取决于诊断性治疗结果
E.如果荧光免疫染色阳性即可确诊