1) Which is more economical?
哪一个较经济？
2) Which is faster?
哪一个较快？
3) Which is hotter?
哪一个较热？
4) Which is heavier?
哪一个较重？
5) Which is colder?
哪一个较冷？
6) Which is more quiet?
哪一个较安静？
参考词条