关于提单的法律特征，以下表述错误的有( )。

A．提单是承运人与托运人签订的海上运输合同的证明

B．提单是承运人收到托运人交付的货物的凭证

C．提单是一种物权凭证，并能作为向银行结汇的依据

D．提单是国际贸易支付方式的一种

Some of the low-end made-in-China mechanical-electronic products are not selling well in export market as compared with what are termed as high-end ones.

A. on export market
B. in exporting market
C. in exported market
D. in the export market