TOEFL Listening: ETS-TOEFL听力机经 - OXJ7713I9X1WZ4WKP$

What difference between weeping grass and more familiar lands grass did the professor emphasize? A. Weeping grass requires less space to grow. B. Weeping grass grows much more quickly. C. Grains of weeping grass tend to be much longer. D. Grains of weeping grass are higher in protein.