晋唐时期史称三大方书为《黄帝内经》、《伤寒论》、（千金方》。

“Sit（），please”翻译成中文是“请坐”。

A.on
B.off
C.down
D.up

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“我经常头痛？”翻译成英语是（）

A.I often have a headache
B.I have often a headache
C.I often have a backache
D.I have often a backache

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