甲状腺髓样癌^99mTc-octreotide显像，肿瘤组织浓聚相关因素是（）

A．特异性结合

B．细胞膜葡萄糖转运体-1

C．细胞膜Na⁺-K⁺ATP酶

D．显像剂与血浆中转铁蛋白结合

E．线粒体膜两侧电位差

A plain vanilla interest rate swap is a contract where one party pays a:()

A. fixed interest rate and the counterparty pays a floating rate in a different currency. 

B. fixed interest rate and the counterparty pays a fixed rate, both in the same currency.

C. fixed interest rate and the counterparty pays a floating rate, both in the same currency.