移频衰耗器，根据技术指标初级线圈1，2的输入阻抗Z1为4Ω～4.5Ω。当RT从0变到∞时，此值变化范围在（）之间。

A、4Ω～4.3Ω

B、4.12Ω～4.6Ω

C、4.12Ω～4.64Ω

D、4.12Ω～4.95Ω

—_____ does the book _____ you?

—Can you guess? [ ]

A. How many, spend

B. How much, cost

C. How much, spend

D. How much money, pay