试题题干
“What researchers such as Ransom Myers and Boris Worm have shown is just how fast things are changing.” 这句话中做主语的有（ ）
参考答案
正确答案：
试题解析
What researchers such as Ransom Myers and Boris Worm have shown is just how fast things are changing.
句意为：兰森•迈尔斯(Ransom Myers)和鲍里斯•沃姆(Boris Worm)等研究人员已经证明，事情正在发生多么迅速的变化。
本句为主从复合句，共有两个分句，故主语有两个，分别是What researchers such as Ransom Myers and Boris Worm have shown、 things。
所以本题选CD。