Official 36 Lec 3
答题结果:0/6
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Question 4 of 6
What enabled Levitt &Sons to build houses economically?

A.

They were able to create new designs very quickly.

B.

They used the same materials for every house.

C.

They constructed houses near large cities.

D.

They trained workers to perform specialized tasks.

我的答案:

正确答案:BD

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