【单选题】One machine can do as much work as ______.
A.40% of the people
B.4% of the people in the world
C.40 people
D.75 000 people
网考网参考答案:C
网考网解析:
这是一道细节题。文中信息比较明显。倒数第2句One machine can often do the work of forty people表明,正确C。
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