An additional NC-123B was used like a radio relay plane around the Ho Chi Minh trail, with gear to examine the indicators from different sensors on the bottom intended to pick up enemy truck exercise.Ch?i cá c??c là b?n ?ang s? d?ng nh?ng ??ng ti?n có giá tr? th?c t? ?? ??t c??c. N?u th?ng b?n s? nh?n ???c m?t kho?n ti?n th?t và n?u thua thì