单选题 Some of the low-end Made-in-China mechanical-electronic products are not selling well {{U}}in export market{{/U}} as compared with what are termed as high-end ones.
【正确答案】 D
【答案解析】[分析] 冠语应用 in the market“在市场上”，句子中多了一个名词export修饰market，因此，定冠词应保留。