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2. Retail stores like Watson’s and Cosmed depend on building relationships with regular _____ in order to have good business.
(A) schedules
(B) customers
(C) hours
(D) products
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統計： A(12), B(123), C(7), D(16), E(0) #3426331
統計： A(12), B(123), C(7), D(16), E(0) #3426331
