----Now that you like the house with a garden, why not buy it?

----Well, I can’t afford _____ house at present.

A．that expensive a

B．a such expensive

C．that an expensive

D．a so expensive

以下有关"调节准确度"的说法，错误的是（）

A.调节准确度是调节需求与调节反应之差

B.如调节需求大于调节反应，则为调节滞后

C.近视患者屈光矫正后，视近时常表现为1D左右的调节滞后

D.近视患者屈光完全矫正后，视远时往往可以测得1D左右的调节超前

E.远视患者视近时往往表现为调节超前