This paper will focus on instruction cost-effective management to make a study.

本论文将重点对教学成本效益管理方面进行研究。

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The CPU speed (in milliseconds per instruction) is used by the SQL optimizer to estimate the cost of performing certain operations.

SQL 优化器使用 CPU 速度（每条指令几微秒）来评估某些操作的执行成本。

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The market for driving instruction is crowded with part-timers looking to make a little extra income from their car, perhaps to defray the increasing cost of gas.

驾驶培训行业中有许多兼职人员，试图用他们的车子赚些额外的收入，或许是为了支付日益增涨的油价。

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Orchkids works with the Baltimore City Public Schools to provide instruments, academic instruction, meals and mentorships at no cost.

FORBES: A Maestra of Inspiration

The total cost to society of a credit hour of instruction at for-profit institutions is vastly lower than at not-for-profit schools.

FORBES: The Three "I's" of Higher Ed Reform

Web-based instruction for teachers is one of the most important because it can be an extremely cost-effective way to train new teachers, and it may be the only way we can possibly fill the huge demand for qualified teachers.

FORBES: Magazine Article