TOEFL Listening: TPO-TOEFL听力TPO - 212N193J1Z2ZU1KNR$

In what ways are modern muon detectors different from muon detectors used in 1967? A. Modern detectors are less expensive. B. Modern detectors use less energy. C. Modern detectors are not as large. D. Modern detectors take less time to produce an image. E. Modern detectors can scan in more than one direction.