11.   None the less, simple systems are widely used to do abinitio calculations accurate enough to answer important questions for reasonably complex molecules.

12.   Some important questions remain unanswered.

13.   Sometimes we can only raise important questions, not answer them.

14.   Such a blueprint could not help but postpone indefinitely important questions facing the integrative bodies already in existence.

15.   The book raises important questions about nationality and the role of a citizen.

16.   The discussion now turns to key examples from comparative politics that have examined these important questions.

17.   The important question is not how popular cultural sensibilities shift but why they do.

18.   The matter of where the real values lie seems to me to be the final important question of this book.

19.   There are also important questions about the handling, safeguarding and transport of missile systems.