V_i Nh_ c_i Letou, b_n c_ th_ __t c_c v_i s_ ti_n nh_ nh_t v_ kh_ng m_t b_t k_ m_t chi ph_ giao d_ch n_o khi g_i ti_n v_o trong t_i kho_n Letou. _t s_ l_a ch_n: c_ r_t _t ch_ __ __ c_c b_n c_ th_ l_a ch_n v_ c_ng kh_ng nhi_u trong s_ h_ c_ th_ d_nh ___c s_ tin t__ng c_a b_n. T_o, x_i k_o: Ni_m tin v_o k_o n_o __ b_ s_p __, th__ng _i li_n v_i banh x_c. C_i v_ng lu_n qu_n _y khi_n kh_ng _t _ng ng_p l{