6. The patient’s _____ response to treatment alarmed the medical team, yet no underlying cause had been identified despite exhaustive diagnostic testing.
(A) chronic
(B) sporadic
(C) erratic
(D) volatile
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統計: A(2), B(0), C(2), D(0), E(0) #3955146
統計: A(2), B(0), C(2), D(0), E(0) #3955146