最终合同付款在设备保证期截止时,在卖方提供相关文件和单证后,买方支付合同价的尾款,一般为合同总价的( )。
A.5%
B.7%
C.10%
D.15%
参考答案:C
A. would go B. would wentC. Will goD. is going to
内因不稳定