看BY里的说法是: 在标准书面语中,非限制定语从句的关系代词which不能指整个句子, 正确的表达是:句子,-ing……; 句子+ n. 结尾, which……(which引导的从句修饰n.)
如果我们把A选项看成非限制性定语从句的话, 2005 and then to stabilize at six billion cubic feet a day , which will allow such an extraction rate at least for 50 years' production,从句意出发,即使不看多出来的such an extraction rate, which也应该指代前面的 then to stabilize at six billion cubic feet a day,而不仅仅是 six billion cubic feet a day,但是在非限制性定语从句中,which只能表示就近意群,而不能表示整句话,所以,这句话不能当做非限制性定语从句,因此A选项是不对的。 正确的是稍加变幻,成为B选项的同位语从句。
我不明白OG上面对A解释的话 The relative phrase beginning with which is nonsensical, since the pronoun reference is inaccurate, ?? and the phrase essentially says that the extraction rate enables the extraction rate. ?? 是什么意思