To make this work in real life, we need to be able to replace the "real" DAO class with the new "simulated" DAO class in our program.
要使这种技术在实际工作中有效，需要能够将程序中的“实际”dao类替换成新的“模拟”dao类。
With students as brave, hard working and intelligent in our program it will certainly get off to a soaring start!
拥有这些聪明、果敢、辛勤努力的学生，中加合作办学的项目一定会获得成功。
The database tracking time period is set in our program, and could be as short as one hour or as long as one week, based on the market move.
我们的程序设定了数据库跟踪周期，周期短可短到一小时，长可长到一星期，因市场走势而定。
The database tracking time period is set in our program, and could be as short as one hour or as long as one week, based on the market move.
我们的程序设定了数据库跟踪周期，周期短可短到一小时，长可长到一星期，因市场走势而定。
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