TOEFL Reading: ETS-TOEFL阅读机经 - NFCH43K3V59FZ4WSL$

According to paragraph 5, which of the following is characteristic of the steady-state theory? A. The rate of expansion it predicts is too slow to be measured by current instruments. B. New stars and galaxies are formed, but the large-scale properties of the universe remain the same. C. The density of matter changes over time as the universe evolves. D. The creation of new galaxies will eventually stop the universe from expanding.