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

对BSP代理人票款结算专户要严格掌握平时（）的原则

A、只收不付

B、只付不收

C、可收可付

D、不收不付