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【单选题】
非水溶液滴定法测定杂环类药物的氢卤酸盐含量时,常用于消除酸根干扰的试剂是 。A.
氯化汞
B.
硫酸汞
C.
硝酸汞
D.
高氯酸汞
E.
醋酸汞
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皮皮学刷刷变学霸
举一反三
【简答题】对于浪漫主义诗人来说,自由高于一切。(supreme)
【单选题】Believe it or not, when first ______ to Europe, tomato was thought to be poisonous.
A.
to introduce
B.
introducing
C.
introduced
D.
to be introduced
【单选题】When first to his new classmates, the little boy felt shy and said nothing.
A.
introducing
B.
introduced
C.
introduce
D.
being introduced
【简答题】When first learning to speak Spanish，I was often embarrassed at my errors in pronunciation．
【单选题】高血压脑病的临床表现是
A.
头痛、呕吐、抽搐、意识模糊
B.
头痛、失眠、记忆力减退
C.
性格和行为改变并扑翼样震颤
D.
精神错乱及自知力丧失
E.
昏迷伴偏身瘫痪
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