题干
—How come you still work here? I hear your company has bought a new office building.
—But the newly-bought building_______ .
A：has decorated
B：is decorated
C：is being decorated
D：will be decorated
答案(点此获取答案解析）
C
=0”是“（x1，y1）、（x2，y2）、（x3，y3）三点共线”的（ ）