The author had trouble operating his VCR because______. It seems that manufacturers will remain reluctant to make improvements

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问题 The author had trouble operating his VCR because______.
It seems that manufacturers will remain reluctant to make improvements unless______.

选项 A、they can do so at a very low cost
B、they find their machines hard to operate
C、they have difficulty selling their products
D、they receive a lot of complains about their machines

答案C

解析 细节题。本题主要考查对第二段最后一句"Finally,if manufacturers can get away with selling products that are difficult to use,it is not worth the effort of any one of them to make improvements"的理解,由句意可知,只要能卖出这些难以操作的产品,厂方就不会费力改进。所以除非产品销售不出去,否则厂方不会改进,故C是正确答案。
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