例句與造句

1. Their findings " confirm that the so-called Medieval Warm Period did not exist in the form of a globally synchronous period as warm, or warmer, than today, " he said, adding that warm weather seen in that period was apparently only a regional phenomenon.
2. The TAR discusses " Was there a " Little Ice Age " and a " Medieval Warm Period " ? " and says " Thus current evidence does not support globally synchronous periods of anomalous cold or warmth over this timeframe, and the conventional terms of " Little Ice Age " and " Medieval Warm Period " appear to have limited utility in describing trends in hemispheric or global mean temperature changes in past centuries ."
3. However, that view was questioned by other researchers; the IPCC First Assessment Report of 1990 discussed the " Medieval Warm Period around 1000 AD ( which may not have been global ) and the Little Ice Age which ended only in the middle to late nineteenth century . " The IPCC Third Assessment Report from 2001 then summarized research : " evidence does not support globally synchronous periods of anomalous cold or warmth over this time frame, and the conventional terms of'Little Ice Age'and'Medieval Warm Period'appear to have limited utility in describing trends in hemispheric or global mean temperature changes in past centuries . " Global temperature records taken from ice cores, tree rings, and lake deposits, have shown that the Earth may have been slightly cooler globally ( by 0.03 癈 ) then than in the early and mid-20th century.
4. It's difficult to find synchronous period in a sentence. 用synchronous period造句挺難的