葛根中主要成分是
A.295~300nmB.217~220nmC.1700~1800cmˉ1D.420nmE.低40cmˉ1
参考答案:C
I'd like to share a story ________ music overcomes a physical barrier and makes a connection
with a young student. [ ]
A. which
B. that
C. when
D. where
秦朝的郡县制开辟了中国行政区划的先河,下列有关郡守县令的表述不正确的是
A.是地方行政长官
B.由皇帝直接任免
C.可以在辖区内铸造钱币
D.是皇帝加强对全国各地权力控制的工具