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55 A schoolB firm C store D college

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38 Which of the following is NOT true of mental retardation?
A It is not curable. B Its ictims are usually born with it.
C Its causes are not fully identified yet. D It can spread among family members.

57_________.
[A]wrapped
[B]rested
[C]gathered
[D]packed

A)general B)regular C)relative D)essential

Modern industry must have developed _______

A. before the Middle Ages B. around the 19th century C. in Greece or Rome D. machines to take tests

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