TOEFL Reading: ETS-TOEFL阅读机经 - 17651681L33V9CA1L$

According to paragraph 1 most twigs of the true cypresses would be arranged in which of the following manner A. Most small twigs on true cypresses have been found located at the margins of the canopy. B. The shaded center areas of true cypresses are generally occupied by many small twigs and branches. C. True cypresses shed twigs that grow on large, unproductive branches. D. True cypresses seasonally shed small twigs without regard to whether they are productive or not.