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参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
【单选题】血竭具下列哪项特征
A.
与水共研呈白色乳状液
B.
与水共研呈黄棕色乳状液
C.
粉末遇硝酸呈绿色
D.
用微量升华法收集样品，镜检可见苯甲酸的细小结晶
E.
外色黑似铁，研粉红如血，火燃有苯甲酸香气
【单选题】What is the main aim of book review? （单选）
A.
analyzing a perspective or argues a point
B.
analyzing or discussing researches previously published by others
C.
summaries and comments on a newly published academic book
D.
summaries, reviews and comments the research trends, the major discoveries, significant findings, the leading opinions on a particular subject.