37. The device is to be used for _____ purposes only. No commercial use will be allowed.
(A) deserted
(B) industrious
(C) haphazard
(D) recreational
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統計: A(7), B(73), C(26), D(58), E(0) #3102675
統計: A(7), B(73), C(26), D(58), E(0) #3102675