5. With medical technology advancing so rapidly, there has been significant
________ in treating some diseases that might have been incurable before.
(A) survival
(B) damage
(C) progress
(D) guide
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統計: A(16), B(11), C(49), D(11), E(0) #3814390
統計: A(16), B(11), C(49), D(11), E(0) #3814390