小柴胡汤组成中含有的药物是()
A.半夏、生姜
B.半夏、枳实
C.半夏、枳壳
D.白茯苓、甘草
E.生姜、大枣
参考答案:A
I am in ______ charge of the class which was in ______ charge of my wife.
A.不填;the
B.不填;不填
C.the; 不填
D.the; the
设A是三阶实对称阵,有特征值λ=3,对应的特征向量为ξ=[1,2,3]T,则二次型在特征向量ξ=[1,2,3]T处的值
______.