北宋时期的2具()作爲针灸教学的()和考试针灸医生之用。
参考答案:铜人模型;直观教具
-- She felt so sorry that she burst into tears.
-- I’d rather you _____her all about that.
A.didn’t
B.hadn’t told
C.not tell
D.won’t tell
何谓跳频技术?