39 The flight made an emergency landing after experiencing severe ______ that injured dozens of passengers.
(A) hydration
(B) turbulence
(C) magnitude
(D) deprecation
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統計: A(1), B(17), C(3), D(3), E(0) #4002906
統計: A(1), B(17), C(3), D(3), E(0) #4002906