18.
(A) Since it may seem saccharine
(B) Though saccharine it may seem
(C) Saccharine while it may seem
(D) Saccharine as it may seem
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統計: A(0), B(4), C(2), D(16), E(0) #3426597
統計: A(0), B(4), C(2), D(16), E(0) #3426597