记得语法书上说有生命得东西可以用 ‘s,没有生命得一般用 of。 比如 Tom's gitar. 和 mechines of this factory. 可是有些题目得正确答案用得名词所有格和这种说法不符,下面是一个例子
大全139. As the etched lines on computer memory chips have become thinner and the chips’ circuits more complex, both the power of the chips and the electronic devices they drive have vastly increased. (A) the chips’ circuits more complex, both the power of the chips and the electronic devices they drive have (B) the chips’ circuits more complex, the power of both the chips and the electronic devices they drive has (C) the chips’ circuits are more complex, both the power of the chips and the electronic devices they drive has (D) their circuits are more complex, the power of both the chips and the electronic devices they drive have (E) their circuits more complex, both the power of the chips and the electronic devices they drive have
i think it is not always true. u can say "China's financial industry" or "the finanicial industry of China". The former reads more smooth and fast-flowing