阿摩線上測驗
4. A routine cable car ride in Pakistan became an ____ twelve-hour rescue mission after two cables snapped, leaving eight passengers, including schoolchildren, suspended hundreds of feet in the air.
(A) igneous
(B) arduous
(C) optimal
(D) ethical
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統計： A(1), B(23), C(2), D(2), E(0) #3436326
統計： A(1), B(23), C(2), D(2), E(0) #3436326
