The second performs a select statement, using the alternative question mark placeholders.

而第二个例子使用问号占位符执行一条select语句。

youdao

We firstly divide the alternative question into two parts, selection and question. Meanwhile, we investigate the expressions of selection and question.

并首次将选择疑问句分为选择和疑问两部分，对选择的表现形式、疑问的表现形式分别进行研究。

youdao

The key question is whether the savings in licensing fees for proprietary products outweigh the additional costs in manpower to integrate and operate the free alternative.

关键问题在于免去专利软件许可证所省下的钱，是否高于整合及使用它们的免费替代品所带来的额外人力资源成本。

youdao

In this case, he could force people to ask themselves a fundamental question: What is the alternative?

CENTERFORSECURITYPOLICY: Center For Security Policy

For an hour and a half they spoke about how to solve what Icelandic President Grimsson called, "the most fundamental question of the 21st century": energy and whether there will ever be enough alternative sources of power to satisfy global demand if, and only if, the world manages to shake its addiction to oil and other fossil fuels.

CNN: Doha - round table highlights

Earlier this year, I was in Cecil County, Maryland, a very conservative area, and they came right to the brink of suggesting that students read alternative texts that would put evolution into question.

NPR: Intelligent Design in American Classrooms