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【单选题】
既可以检测皂苷又可以检测强心苷的试剂是( )A.
醋酐-浓硫酸
B.
三氯化铁-冰醋酸
C.
三氯化锑
D.
碱性苦味酸
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】If you study harder, you will catch the others in the class.
A.
up
B.
up with
C.
up of
D.
To
【简答题】“I sometimes get up at three or four in the morning and I surf the net.” “I often check my e-mail forty times a day.” “I often spend more than three hours during one time on the net.” “I spend more ti...
【简答题】是测量工作的基准线。
【简答题】“I sometimes get up at three or four in the morning to surf the Internet.” “I check my e-mail almost forty times a day．” “I seldom spend less than three hours each time on the net.” “spend more time i...
【单选题】听力原文：M: You study harder than Nancy. W: To be honest, Mary works even harder. Q: Who works hardest? (18)
A.
The man.
B.
Mary.
C.
Nancy.
D.
No one.
【简答题】阅读短文，回答问题。 It is Sunday. I never get up early on Sundays. I sometimes stay in bed until lunch time. Today is Sunday again. I get up very late. I look out of the window. It is dark outside. 'What a day...
【简答题】阅读理解。 'I sometimes get up at three or four in the morning and I surf the net.' 'I often check my e-mail forty times a day.' 'I often spend more than three hours during one time on the net.' 'I spend m...
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