对气虚不化引起的癃闭治法作出很大贡献的医家是()
A.孙思邈
B.张景岳
C.王焘
D.朱丹溪
E.张仲景
参考答案:B
白磷和红磷是由磷元素形成的不同单质,它们燃烧的产物都是PO,但相同条件下等量的白磷和红磷燃烧前者放出的热量多。下列说法正确的是( )
A.白磷比红磷稳定
B.白磷转化成红磷放出热量
C.白磷转化成红磷吸收热量
D.相同质量的白磷和红磷相互转化时的能量变化值不相等
Each person at the reunion was required to talk to other relatives to find out if they would buy one of the histories()it were printed.
A.whether
B.if
C.when
D.after