756. To map Earth's interior, geologists use a network of seismometers to
chart seismic waves that originate in the earth's crust and ricochet around
its interior, most rapidly traveling through cold. dense regions and slower
through hotter rocks.
A. interior, most rapidly traveling through cold. dense regions and slower
B. interior, which travel most rapidly through cold, dense regions, and more
slowly
C. interior, traveling most rapidly through cold, dense regions and more
slowly
D. interior and most rapidly travel through cold, dense regions, and slower
E. interior and that travel most rapidly through cold, dense regions and
slower
Answer: C

推 講解清楚另外想請教D大一個問題: 在實戰中看到 , + Ving 是不是一定要確認是主詞才可呢？感謝 D大解惑 了解了