If the coupon payments are reinvested at the coupon rate during the life of the issue, then the:（）

A. yield to maturity is greater than the realized yield.

B. yield to maturity is less than the realized yield.

C. yield to maturity cannot be determined from the information given.

对于防腐层的厚度都要进行一定数量的抽检，抽查时对于每个抽查截面分别取上、下、左、右4点，以（）为准。

A、最厚

B、最薄

C、平均

D、无规定