Gemcitabine(1000mg/m2)，Nedaplatin(60mg/m2),BAI, Day 1/4weeks. 4weeks per cycle. Tumor assessment will be perforemd after 2 cycles. if no PD, patient will be treated with 3DCRTfor 1 month. for patient PD after 3DCRT, complete the study. patient no PD after 3DCRT will receive 2 cycle of chemo with Gemcitabine. Nedaplatin.

then patient will be followed for 1 year..

Gemcitabine 100mg/m2, D1 & D8 every 4 weeks Nedaplatin 75mg/m2, D1 every 4 weeks. every 4 weeks per cycle. Tumor assessment will be performed after 2 cycles. if no PD, patient will be treated with 3DCRT for 1 month.

for patient PD after 3DCRT, complete the study. patient no PD after 3DCRT will receive 2 cycle of chemo with Gemcitabine. Nedaplatin.

then patient will be followed for 1 year.

Gemcitabine, Injection, 1000mg/m2, D1 & D7/ 4weeks/cycle, 2 cycles Nedaplatin, Injection, 75mg/m2, d1/4weeks/cycle, 2 cycles.

Regular tumour assessments (based on RECIST criteria) for determining disease response and progression using CT and MRI scans, and overall survival.The primary efficacy variable is progression free survival (PFS), defined as the time between randomisation and the date of first documented disease progression or death from any cause, whichever comes first. Disease progression is defined according to the RECIST criteria.

after Progressive Disease, patient will be contact every 3 month for the survival information.