GRE
$$\frac{9^{17}}{8^{17}}$$
$$\frac{9^{17}+5^{10}}{8^{17}+5^{10}}$$
The number of doctors surveyed who said that drug Q was effective and did not say that drug R was effective
210
x
$$\sqrt{2}$$
N
m+10s +100p
$$P+Q+3$$
$$Q+R-3$$
$$\frac{\frac{2}{3}y+\frac{2}{3}y+\frac{2}{3}y}{3y}$$
$$\frac{2}{3}$$
The amount of time that it takes machines K, L, and M, working simultaneously at their respective constant rates, to produce 100 units of product Z
1 hour
n
16
y
$$(\frac{2^{3}}{3^{2}})^{4}$$
$$(\frac{2^{-3}}{3^{-2}})^{-4}$$
25000 +道题目
245本备考书籍