市场营销学的变革时期与过去相比发生的显著变化是__________________。
You can _____ some bottles of wine, or some chocolates, or a bunch of flowers.
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
与传统的市场营销相比,网络营销有了新特点,在( )方面发生了变化。
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