[单选题]
A compound microscopeszhzm59*- greo 8;txnczf(bwhf4u : 8zqj80 k has an objective with a focal length of 3.00 mm and an eyepiece of focal length 6.00 cm. If the two lenses are separated by 40.0 cm, what is the total ma;ofj8 q z(b84 wfkhz x0n:uc8tgnification?