It is easy to detect the physical differences between originals and copies.（)

Bicycling is the best physical activity because it is most comfortable to most people

The passage implies thatA．it is not easy to persuade manufacturers to adopt the new design

— The physics exam is not difficult, is it？— （) . Even Harry to the top students fai

Which course is easy to the woman？A．Physics.B．The seminar of computer science.C．Mechanical

Writing is not an easy skill. It is both mental and physical. A person must be able to mov

It is easy to misjudge the 【strength】 of the wind