在"虚火不归其部而失血亡阳者,亦纳气而归封蛰之本矣"中"封蛰之本"是指()
A.心
B.肝
C.脾
D.肾
参考答案:D
何谓微生物?微生物有哪些种类?
Between the side frames on a vessel,support for the deck beams is provided by().
A.stanchions
B.brackets
C.web frames
D.deck stringers