双因素理论认为,调动人的积极性的因素可以分为___ 因素和 ___ 因素。
下列因素中属于赫茨伯格双因素理论中的激励因素的是___________。
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.
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