苏木的红色成分是
A.巴西苏木素 B.色原烷类 C.巴西苏木色素D.黄酮类化合物 E.挥发油
参考答案:C
Mr.Smith told us that gold medal his son had got was considered honor to the whole family.
A.the:/
B.the;an
C.a;an
D.a;the