[填空题]
The Earth and Moon are seozwuc/t19 6 fybj/ je,9 ll6toqa -ph2para- q*opwptxv8 s 9id-3g*drdz0 ted by about $400\times10^6\mathrm{~m.}$ When Mars is $8\times10^{10}\mathrm{~m}$ from Earth, could a person standing on Mars resolve the Earth and its Moon as two separate objects without a telescope? Assume a pupil diameter of 5 $mm$ and $\lambda=550\mathrm{~nm}.$
