诊断甲亢最可靠依据是（）
A.甲状腺肿大
B.基础代谢率增高
C.中枢神经系统兴奋性增高
D.T3、T4增高
E.多食、消瘦
参考答案：D
We would like to thank the founder of our library, without ________ help none of this would have been possible.
A．which
B．whom
C．whose
D．that
电力营销事件的经济事件分为哪几类？
