郁金药材的产地加工方法是()
A.蒸或煮至透心,干燥
B.蒸透心,敞开低温干燥
C.发汗后再晒干或烘干
D.反复暴晒、堆放至七八成干,再干燥
E.烫或蒸至无白心
参考答案:A
The generous man devoted all he had _______ the victims, because of which he was highly praised.
A.to help
B.helping
C.helped
D.to helping
压力容器()至少进行一次全面检验。
A.每四年
B.每六年
C.每八年
D.每十年