Which is not the reason that the Forbidden City attracts more visitors from abroad?

哪个不是紫禁城吸引更多外国游客的原因？

youdao

By the time he was 14, he had studied advanced math on his own. It was the reason that he could answer the difficult math problem.

到他14岁的时候，他已经自学了高等数学，这也是他能够解答这道难题的原因。

youdao

I want to apologize for not coming to your birthday party. The reason that I didn't show up was because I had to do some work for my teacher.

我想为没来参加你的生日聚会而道歉。我没能到场的原因是我必须帮我的老师做一些事情。

youdao

"That is also the reason that some of these al-Qaida functionaries may have been kicked out of that region to other areas of Pakistan."

VOA: standard.2009.03.19

Now the reason that is true is because we live in a post-Christian culture, and both aspects of that term are important.

出现这种情况的原因是,我们生活在后基督教文化中，有两方面的意义。

耶鲁公开课 - 新约课程节选

And the reason that this should be so fast is we already did all the calculations for the formal charges.

这应该很快就能做出来的原因是,我们已经做完了关于形式电荷的所有计算。

麻省理工公开课 - 化学原理课程节选

Moreover, one of the reason that oil prices are high is due to structural impediments.

FORBES: Up Through the Ground Didn't Come a Bubblin' Crude

Mr Crone said "it was the reason that we had to settle" a case.

BBC: Hacking MPs recall News International's James Murdoch

The reason that glaciers flow to begin with is because the bottom is liquid.

FORBES: Global Warming: Hotheads, Flatliners and Lukewarmers, Part One