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

The exam was not so difficult as we （).A.expectB.had expectedC.are expectingD.were ex

For instance, the public may not fully understand the physical principles behind lasers, b

The difference between biological and physical science is not that one is inexact, the oth

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

A（Not having passed) the law exam, the state B（refused) C（to issue) him a license to D（pra

Which one is not one of the differences between NetBook and iPad？A.iPad has a better di