按照信息检索的对象性质可将信息检索类型分为、数值检索和。
查看答案
简述信息检索系统的逻辑结构，并描述各子系统的功能、作用和关系。
Which of the following values doesn't belong to that of Puritans'?
A. hard work
B. thrift
C. self-reliance
D. Patriotism
________ is a book written by Benjamin Franklin to recollect his life and encourage young people to strive for a better life.
A. Poor Richards Almanac
B. The Autobiography
C. The Arrival in Philadelphia
D. The Way to Wealth
微信支付 
支付宝支付