Which statement of University of Maryland is INCORRECT
A. College Park is its flagship college.
B. It’s a state-run school.
C. It’s a prestigious school.
D. It’s in western America.
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可使还原糖显棕黑色的显色试剂是
A. 三苯四氮唑盐
B. 苯胺一邻苯二甲酸盐
C. 3，5-二羟基甲苯一盐酸
D. 硝酸银
E. 过碘酸一联苯胺
About ______ new motor homes were sold last year.
A. 20,600
B. 46,000
C. 62,000
D. 186,000
黄酮类化合物可与强无机酸形成盐是因为其分子中含有
A. 羟基
B. 羰基
C. 双键
D. 氧原子
E. 内脂环
聚酰胺在＿＿中对黄酮类化合物的吸附最弱
A. 水
B. 丙酮
C. 乙醇
D. 氢氧化钠水溶液
E. 甲醇
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