producer

Moving production from a<br/>high-cost producer to a low-cost producer will (<br/>) A: lower total surplus. B: raise total surplus. C: lower producer surplus. D: raise producer surplus but<br/>lower consumer surplus.

生产者（Producer）

Producer surplus

制片人（Producer）

What is the total surplus of a market? A: the sum of consumer surplus and producer deficit B: the sum of consumer surplus and producer surplus C: the difference between the consumer surplus and producer surplus D: the difference between the highest price that a consumer is willing to pay and the lowest price that a producer is willing to sell

关于Kafka的Producer，如下说法正确的是？（） A: Producer是消息生产者 B: Producer生产数据需要制定Topic C: 可以同时引起多个Producer进程向同一个Topic进行数据发送 D: Producer生产数据时需要先连接ZooKeeper，而后才连接Broker

Iran is the largest producer of in the world.

is a heavy producer and consumer of wine.（ ）

在kafka中，如下关于Producer发送数据的说法错误的是（） A: Producer负责生产数据。Consumer负责消费数据。Producer和Consumer之间需要建立连接 B: Producer既可以发送数据到Broker上。又可以发送数据到Consumer C: Producer作为消息生产者。可以直接将数据写入Zookeeper D: Producer连接任意一个正常的Broker实例就可以产生数据