----What did your dad tell you, my baby? ----He said the sun _______ in the east. A. went up B. will go up C. goes up D. is going up 答案:C6.已知△OAB中,$\overrightarrow{AM}$=$\overrightarrow{MB}$,$\overrightarrow{OG}$=2$\overrightarrow{GM}$,P、Q分别是边OA、OB上的动点,且$\overrightarrow{PG}$=λ$\overrightarrow{GQ}$(λ∈R),设$\overrightarrow{OA}$=$\overrightarrow{a}$,$\overrightarrow{OB}$=$\overrightarrow{b}$,$\overrightarrow{OP}$=x$\overrightarrow{a}$,$\overrightarrow{OQ}$=y$\overrightarrow{b}$,(x∈R,y∈R)(1)求$\frac{1}{x}$+$\frac{1}{y}$的值.(2)记△OAB与△OPQ的面积分别为S、T,求f(x)=$\frac{T}{S}$的取值范围.