[单选题]
03.27: Four electrica1uyojxr..o 7y crwe.:*m6 k k3ene:nll c, 8 ,d+s za4pl(y*dq3tlzvwmi kmwt9. harges are arranged on the corners of a 10 cm square as shown. What would be the direction of the resulting el+(wty,pmzw*lk aq4m38s9tv z l.ddi, ectric
field at the center point P?
