考证记载349穴的文献为
A.《针灸大成》B.《千金方》C.《针灸甲乙经》D.《足臂十一脉灸经》和《阴阳十一脉灸经》
参考答案:C
Give them a hand this time and I am sure they will offer theirs ______ in the future.
A.by turns
B.in turn
C.at turn
D.in return
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