GRE
$$3^{-2}$$
$$0.1$$
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
$$\frac{7}{2}S$$
a
b
The actual area of region X
150 square kilometers
$$k$$
$$45$$
$$\frac{r}{t}$$
$$\frac{s}{q}$$
25000 +道题目
236本备考书籍