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【单选题】
在脑脊液中药物浓度最高的四环素类药物是( )A.
四环素
B.
土霉素
C.
米诺环素
D.
多西环素
E.
金霉素
拍照语音搜题，微信中搜索"皮皮学"使用
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】选择合适可以填在横线处的选项，使得可以实现查询在2019年一季度（即1月1日至3月30日）Intel公司股票收盘价大于40美元记录的功能。quotesdf['2019/01/01':'2019/03/30'][_____>40]
A.
close
B.
quotesdf.close
C.
'close'
D.
quotesdf.'close'
【简答题】A．He had some drink at home. B．He had some drink at bar. C．He behaved rudely. D．He took a breathalyzer test.
【简答题】作为一定的社会实践的产物,理想是处在( )历史条件下的人们对社会实践活动理性认识的结晶。
【简答题】A．He had some drink at home. B．He had some drink at bar. C．He behaved rudely. D．He took a breathalyzer test.
【简答题】A．He had some drink at home. B．He had some drink at bar. C．He behaved rudely. D．He took a breathalyzer test.
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