GRE
m+r
q+s
a
b
The number of employees at the company on January 1, 2006
0.85k
The area of the region enclosed by the pentagon shown
$$\frac{7}{2}S$$
The actual area of region X
150 square kilometers
k
45
$$\frac{r}{t}$$
$$\frac{s}{q}$$
x+y+z
$$\frac{1}{x+y+z}$$
25000 +道题目
202本备考书籍