题目内容：
Directions: There are 20 blanks in the following passage. For each blank there are four choices marked A）, B）, C） and D） on the right side of the paper. You should choose the ONE that best fits into the passage. Then mark the corresponding letter on Answer Sheet 2 with a single line through the centre.One factor that can influence consumers is their mood state. Mood may be defined __67__ a temporary and mild positive or negative feeling that is generalized and not tied __68__ any particular circumstance. Moods should be __69__ from emotions which are usually more intense, __70__ to specific circumstances, and often conscious. __71__ one sense, the effect of a consumer's mood can be thought of in __72__ the same way as can our reactions to the __73__ of our friends—when our friends are happy and “up”, that trends to influence us positively, __74__ when they are “down”, that can have a __75__ impact on us. Similarly, consumers operating under a __76__ mood state tend to react to stimuli （刺激因素） in a direction __77__ with that mood state. Thus, for example, we should expect to see __78__ in a positive mood state evaluate products in more of a __79__ manner than they would when not in such a state. __80__, mood states appear capable of __81__ a consumer's memory.
Moods appear to be __82__ influenced by marketing techniques. For example, the rhythm, pitch, and __83__ of music has been shown to influence behavior such as the __84__ of time spent in supermarkets or __85__ to purchase products. In addition, advertising can influence consumers' moods which, in __86__, are capable of influencing consumer' reactions to products. A．as
B．about
C．by
D．with
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