对发现早期病变及指导手术有重要意义的检查为 A: chest CT examination B: regular chest X--ray examination C: B type ultrasound echogram D: fiberbronchoscopy E: expectomtive cytology

How to detect your breast earlie A: Have a monthly self-examination of the breasts after the period. B: To the hospital to have some clinical breast examination. C: When you are over 40, please have a mammograph each year. D: To have needle aspiration cytology.