Global Positioning Systems are now a part of everyday driving in many countries. These satellite-based systems provide turn-by-turn directions to help people get to where they want to go. But,
How do native speakers truly feel when speaking with non-native English speakers? It seems that ____51_____ (break) English annoys them. However, they keep being really nice when speaking with non-
____ that Mary was able to set up new branches elsewhere. A. So successful her business was B. So successful was her business C. So her business was successful
，由图象可得：
，解得
，易求
小时，则去时C距A的距离为
）小时，
，解得
米解析: