Because most teachers tend to leave important topics, have not even seen previous year's papers, not even know the syllabi and just go on boasting themselves for their knowledge.
The Gullion cable was not seen by previous official inquiries.
While their presence on Venus has long been suspected, they were not seen by previous spacecraft.
Despite sweltering heat and severe smog, hundreds of thousands of people marched here on Thursday to demand democracy and, to an extent not seen in previous marches, to criticize Beijing.
A3 Pro-Democracy March in China Hundreds of thousands of people marched in Hong Kong to demand democracy and, to an extent not seen in previous marches, to criticize Beijing for banning general elections and, in their view, trying to intimidate democrats.
The governor's followers have increased to 50,000 from 20,000 last Friday Although phone service has been spotty in some places across the Northeast, people with working signals have been reliant on texting and social networking to a degree not seen during previous disasters.
In an unpleasant sign of lingering inter-religious hostilities, not seen in previous papal visits, some Christian sites have been daubed with slogans like "Jesus is garbage" and "Death to Christians", apparently the work of Jewish extremists who have been denounced by Amos Oz, the Israeli author, as "Hebrew neo-Nazis".
Our computations reveal dynamic phenomena not seen in previous studies of this reactor.
In the flanged electrode configuration the viscous effects generate a multidimensional flow field and lead to a curved flame front, a result not seen in previous work.
Everyone talks about the crazy valuations that YC companies are getting these days, the uncapped notes, and other miscellaneous things we have not seen in previous years.
