男，78岁，因感肢体僵硬、无力入院。检查时可见患者双上肢震颤，休息时明显，运动时减轻，上肢伸肌和屈肌的肌张力均增高，做被动运动时各个方向的阻力～致。

根据上述检查结果提示患者存在（）

A.意向性震颤

B.舞蹈样运动

C.静止性震颤

D.共济失调

E.手足徐动

According to the Regulations on Import and Export Tariff of the People's Republic of China, the duty-paying value of an export item should be its normal （） price with the export duties deducted and examined, approved by the Customs.

A. FOB

B. CIF

C. CFR

D. FCA