题干
It took people three months to build this great building.
A：two hundreds
B：hundred of
C：hundreds of
D：two hundred of
答案(点此获取答案解析）
C
It took people three months to build this great building.
A：two hundreds
B：hundred of
C：hundreds of
D：two hundred of
是公差不为0的等差数列，
成等比数列，则数列
项和
（ ）