How many key comparisons are needed in searching for key value 38?A． 1B．2C．3D．4

Family1.How many are there in your family？

What are surrogate keys？ Explain how the surrogate key pipeline works.什么是代理键？简

What are surrogate keys？ Explain how the surrogate key pipeline works.什么是代理键？简

How many pupils are there in your class？（英译中)

How many students are there in your class？（英译中)

What is the key to deciding on whether you should quit or not？A．How bad the co－workers are