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单项选择题
用茜素蓝试液体系进行有机氯化物的鉴别,生成物的颜色为
A、蓝紫色
B、砖红色
C、蓝色
D、褐色
E、黄色
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相关考题
单项选择题
推断划线部分在上下文中应有的意思(题中单词被隐去若干字母,并非乱码):
Strictly, a c#nt#g#ous disease is one transmitted by physical contact, whereas an infectious one is transmitted via microorganisms in the air or water. In practice, there is little or no difference in meaning between the two.
A、that can be cured
B、that can be transmitted through contact
C、that has something to do with air or water
D、that has something to do with one's physical condition
单项选择题
女劳疸的特征性症状是( )
A.额上黑
B.腹满
C.膀胱急
D.大便黑
单项选择题
We _____ music and often _____ to music.(1.0) A.
like/ listen B.
likes/ listens C.
like/ are listening D.
are liked/ listen
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