The doctor did a lot to reduce the patient’s fear ____he would die of the disease.

A． that

B． which

C．of which

D． of that

某中资企业进口电视机散件组装电视机出口，在海关办理加工贸易备案时尚未订立出口合同，海关准予备案，进口料件的保税额度是( )。

A．60%

B．75%

C．90%

D．100%