消费者产品(Consumer Product)可以细分到消费者如何购买、购买动机、方便性、()、()等。
A.使用评价
B.专业程度
C.购买评价
D.购买过程
A.使用评价
B.专业程度
C.购买评价
D.购买过程
A.consumer使用offset来记录读取位置
B.Kafka的一个Topic可以理解为一个队列,即一个消息
C.生产者产生的消息逐条放到Topic尾部
D.消费者从右至左读取消息
A.消费者Consumer进程进行了一个超长GC回收
B.Consumer长时间不去Broker拉取消息
C.组协调器在一个session.timeout.ms周期内没有收到Heartbeat消息
D.组协调器在一个heartbeat.interval.ms周期内没有收到Heartbeat消息
A.引入Partition机制,保证了Kafka的高吞吐能力
B.每个Partition都是有序且不可变的消息队列
C.Partition数量绝对了每个consumer group中并发消费者的最大数量
D.每个Partition在存储层面对应一个log文件
How does a consumer trade off current and future costs when selecting an air conditioner or other major appliance? How could this selection be aided by an NPV calculation?
A scientist who wants to predict the way in which consumers (消费者) will spend their money must study consumer behavior. He must obtain data both on the resources of consumers and on the motives that tend to encourage or discourage money spending.
If an economist were asked which of three groups borrow most — people with rising incomes, stable incomes, or decreasing incomes—he would probably answer, those with decreasing incomes. Actually in the years 1947 ~ 1950, the answer was: people with rising incomes. People with decreasing incomes were next and people with stable incomes borrowed the least. This shows us that traditional assumptions (假设) about earning and spending are not always reliable. Another traditional assumption is that if people who have money expect prices to go up they will hasten to buy. If they expect prices to go down, they will postpone buying. But research surveys have shown that this is not always true.
The expectations of price increases may not stimulate buying. One typical attitude was expressed by the wife of a mechanic in an interview at a time of rising prices. "In a few months, "she said, "we' 11 have pay more for meat and milk; we' 11 have less to spend on other things. "Her family had been planning to buy a new car but they postponed this purchase. Furthermore, the rise in prices that has already taken place may be disliked and buyer's resistance may be produced. This is shown by the following typical comment; "I just don't pay these prices; they are too high. " The investigations mentioned above were carried out in America; The condition most helpful to spending appears to be price stability. If prices have been stable and people consider that they are reasonable, they are likely to buy. Thus, it appears that the common business policy of maintaining stable prices is based on a correct understanding of consumer psychology (心理学) .
According to the passage, if one wants to predict the way spend their money, he should
A.rely on traditional assumptions about earning and spending
B.try to encourage or discourage consumers to spend money
C.carry out investigations on consumer behavior. and get data on consumers incomes and money spending motives
D.do researches in consumer psychology in a laboratory