Question

China has a larger population___in the word.

A than other countries  B.than all the other countries答案为什么不能选A 若果选A的话应该怎么改 谢谢 

Answer 1

A答案不改，就是在告诉你的几个国家里比较，呐中国比那些国家人口多.
Compare with Thailand,Japan,Korea,China has a large population than other countries.（这里的other countries 就是前面的三个国家）
你能感受到他们的细微区别吗？

A改成than any other country就=B答案

希望能帮到你，谢谢！~

Answer 2

可以这样改：
China has a larger population than other countries.