B7. The following appeared as part of an article in a daily newspaper: “The computerized onboard warning system that will be installed in commercial airliners will virtually solve the problem of midair plane collisions. One plane’s warning system can receive signals from another’s transponder—a radio set that signals a plane’s course—in order to determine the likelihood of a collision and recommend evasive action.”
1. Gratuitous assumption (warning不一定就能避免 midair plane collisions) 2. Gratuitous assumption (commercial airliners装了,但撞机的多是 non-commerical airliner) Any other points? |