第4题: [单项选择]以下药物的鉴别反应为:维生素C(). A. 供试品在碱性条件下水解后,用乙醚萃取,分取乙醚液,加2,2’-联吡啶溶液和三氯化铁溶液,显血红色 B. 取本品1滴,加甲醇10ml与5%氢氧化钾的甲醇溶液1ml,振摇,溶液显绿色;置热水浴中即变成深紫色;放置后,显红棕色。 C. 显氯化物的鉴别反应 D. 显钠盐的鉴别反应 E. 取供试品溶液,加二氯靛酚钠试液,试液的红色即消失 参考答案:E
第5题: [单项选择]妊娠恶阻又称() A. 转胞 B. 子病 C. 子晕 D. 子淋 E. 子烦 参考答案:B
第7题: [简答题]He is very good at playing the flute. 参考答案:
The word "the" is used immediately before one kind of musical instruments, which generally indicates the kind of instruments, but not a specific one.
第19题: [单项选择]What is the most appropriate nursing diagnosis for the client with acute pancreatitis A. Deficient fluid volume. B. Excess fluid volume. C. Decreased cardiac output. D. Ineffective gastrointestinal tissue perfusion. 参考答案:A 答案解析:Clients with acute pancreatitis commonly experience deficient fluid volume, which can lead to hypovo