四六级考试

【单选题】 Why mass production was developed as an alternative
A．Only single purpose machines were needed.
B．It could reduce the cost of production.
C．It produced new products very often.
D．It produced standardized products in high volume.

网考网参考答案：B
网考网解析：
[解析] 从文章第二段第四行cost too much for most of us to afford可知批量生产的出现主要是为了减少生产的成本。故应选B。 查看试题解析出处>>