[单选题]
A compound microscope has an obpjz0mypf0y5 bygq.- , jective with a focal length of 3.00 mm a kjhpf e,.1 tiupc:;4:+vzf bgnd an eyepiece of focal length 6.00 cm. If the two lenses are separated by 40.0 cm, what is the total magnificati fz;t::pk uehc.4+j,pi b v1fgon?
