24.(Correct mistakes) It is(a) obviously a large potential payoff(b) in being able to detect current trends and to forecast future ones(c), which provide a baseline from which judgment can be made about(d) turning points.
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統計: A(31), B(16), C(23), D(50), E(0) #571487
統計: A(31), B(16), C(23), D(50), E(0) #571487