阿摩線上測驗
4.The jewel found in the tomb turned out to be invaluable, but the museum kept it on display rather than offering it for sale.
(A)valueless
(B)precious
(C)worthless
(D)useless
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統計： A(0), B(2), C(2), D(0), E(0) #3845326
統計： A(0), B(2), C(2), D(0), E(0) #3845326
