题干
It is one of ______ in the city.
A：the highest building
B：higher buildings
C：highest buildings
D：the highest buildings
答案(点此获取答案解析）
D
It is one of ______ in the city.
A：the highest building
B：higher buildings
C：highest buildings
D：the highest buildings
的一个单调递增区间为 （ ）
学科网