【单选题】下列关于配合物高低自旋的说法,正确的是()
【简答题】 Directions: There are 2 passages in this section. Each passage is followed by some questions or unfinished statements. For each of them there are four choices marked A ), B ), C ) and D ) . Passage ...
【简答题】 Directions: there are several groups of synonyms; choose the right words in their proper forms. (近义词辨析,挑出合适的单词,将其正确形式填入句子中以完成句子) (Group D: uninterested; disinterested; reputation; prestige; 11. The ...
【简答题】3岁女童,因发热、呕吐、呕吐3天,抽搐、神志不清1小时于7月30日入院。
患儿于入院前3天突然发热,伴头痛,烦躁不安,无鼻塞、咳嗽。曾呕吐胃内容物2次,一次呈喷射状。当地医院给予肌内注射青霉素及退热药物治疗无效。昨起嗜睡,1小时前全身抽搐1次,持续1分钟,继而神志不清而转来本院。发病以来拒食,便尿正常。
既往体检,父母均体检。患儿未接受任何预防接种。
查体:T39.2℃,P110次/分,R2...
【单选题】已知电子的成对能( P )与 d 轨道的分裂能(△)的相对大小会影响八面体构型的配离子成为高自旋或低自旋的配离子。下列论述正确的是( C )
【单选题】女孩,1岁10月。3天前无明显诱因下出现发热,热峰40℃,尿色深,尿频伴尿痛、排尿不畅,大便略稀、无粘液脓血便,无流涕、咳嗽,无抽搐。门诊血常规示白细胞18×109/L,中性粒细胞70%,Hb112g/L,plt210×109/L。C-反应蛋白52mg/L。尿常规示白细胞>200个/HP,蛋白+,红细胞28个/HP。门诊拟“泌尿道感染”,予“阿莫西林克拉维酸钾”治疗2天,尿频尿痛好转,为进一步诊治...
【单选题】 There are several buildings, and there are other power cables around them. If these buildings need to be connected to form a backbone campus network, it is more appropriate to use ().
C.
Unshielded twisted pair