＿all this means is that the financial problem has turned out to be more serious.

Question

这是道选择题，空里填What，但是我不知道这是个什么从句，what又充当什么成分？另外句子应该没问题是What all this means is that the financial problem has turned out to be more serious.如果是同位语从句，那that要跟在前面的名词后面，应该没有is啊！

Answer 1

What all this means是What引导的主语从句，同时what又在从句中作means的宾语；
is后面的that引导表语从句。
这个句型结构是：what-主语从句+is+that-表语从句。
所有这一切的意思是金融问题结果变得更严重了。

Answer 2

句子有问题
What this means is that the financial problem has turned out to be more serious.

Answer 3

该句为名词性从句中的同谓语从句，What all this means 是整句话的主语，What在其中起到means的宾语，即整句话中的the financial problem has turned out to be more serious。整句话意思为：所有的一切/意味着/这个财政问题被证明更加严重。
不知这样的解释是否清楚~

Answer 4

what this means 在句子中作主语。它相当于一个名词性短语，翻译为“这个意思是...”