主页
学科
搜索
账户
常见问题
当前学科:天然药物化学
题目:
选择题
常用于检识生物碱的试剂是( )
A. 醋酸镁
B. 茚三酮
C. 碘化铋钾
D. 盐酸镁粉
答案:
<查看本题扣1积分>
查看答案
答案不对?请尝试站内搜索
推荐知识点:
女性,25岁,高热1周,伴轻度活动后呼吸困难,神志不清1天。辅助检查示:尿蛋白2.0g/L,胸片未见异常,超声心动图提示肺动脉压为45mmHg,头颅CT正常影响此患者预后的主要因素是()
界线由()、()、()、耻骨结节和耻骨联合上缘围成,骨盆被界线分为上方的大骨盆和下方的小骨盆。
定型热箱热管拆装因机型不同而具体步骤不同,但必须()。
行李、包裹事故经过调查能够确认是铁路运输企业需要承担责任范围的,不论责任单位是否确定,均应先行办理赔偿。
Sequoyah was a young Cherokee Indian.son of a white trader and an Indian Squaw(北美印第安女人).At an early age,he became fascinated by“tile talking leaf”,an expression thathe used to describe the white man’s written records.Although many believe this"talking leaf”to be a gift from tile Great Spirit,Sequoyah refused to accept that theory.Like other Indians oftile period,he was illiterate,but his determination to remedy tile situation led to the inventionof a unique 86 character alphabet based on the sound patterns that he heard. His family and friends thought him mad,but while recuperating(恢复)from a huntingaccident.he diligently and independently set out to create a form of communication for his ownpeople as well as for other Indians.In l821,after twelve years of work,he had successfully de。veloped a written language that would enable thousands of Indians to read and write. Sequoyah’s desire to preserve words and events for later generation has caused him to be remembered among the important inventors.The giant redwood trees of-California,called“se-quoias(红杉)”in his honor,will further imprint his name in history. 根据以上内容,回答题。What is the most important reason that Sequoyah wiU be remeIll]bered?
某个项目干系人联系项目经理讨论些额外的范围他们想增加到项目上。项目经理咨询了详细的信息并书面化执行了范围控制过程。项目经理在被要求的范围评估完成后,接下来需要做什么?()
取得劳务分包资质的企业可承揽下列哪些工程()。
一侧面神经周围性损害表现为()
消化性溃疡并急性穿孔患者腹部视、触、叩、听诊检查有何异常体征