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【单选题】
叶粉末经微量升华得油状物，加硫酸2滴及香草醛结晶少量，黄色至橙黄色，再加水1滴，即变紫红色，用该法鉴别的药材是A.
青蒿
B.
半枝莲
C.
薄荷
D.
穿心莲
E.
荆芥
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皮皮学刷刷变学霸
举一反三
【单选题】____how to solve the problem. [ ]
A.
Only he knew
B.
Only did he know
C.
He only did know
D.
Only did know he
【单选题】___ himself wrong, but his friends were wrong. [ ]
A.
Not was only he
B.
Not only he
C.
Not only was he
D.
Not only was
【简答题】A．Only those used in the university. B．Only those printed at the university. C．Only those currently available from publishers. D．Only those in the field of political science.
【判断题】In Wales, there are cultural and political differences between Welsh-speaking Wales in the north-west and center and English-influenced Wales in the east and south-west.
A.
正确
B.
错误
【简答题】用AUTOCAD 绘图时,延伸命令的快捷键是什么?
【判断题】In Wales, there are cultural and political differences between Welsh-speaking Wales in the north-west and center and English-influenced Wales in the east and south-west.
A.
正确
B.
错误
【简答题】____________________ [A] even if [B] if only [C] only if [D] as if
【判断题】In Wales, there are cultural and political differences between Welsh-speaking Wales in the north-west and center and English-influenced Wales in the east and south-west.
A.
正确
B.
错误
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