until the current warming trend exceeds the range of normal climatic fluctuations, there will be, among scientists, considerable___the possibility that increasing levels of atmospheric CO2 can cause long-term warming effects.
1.interest in
2.uncertainty about
3.enthusiasm for
4.worry about
5.experimentation on
worry about 为什么不行
a common argument claims that in folk art, the artist's subordination of technical mastery to intense feeling_____the direct communication of emotion to the viewer.
1.facilitates
2.averts
3.neutralizes
4.implies
5.represses
为什么一定要facilitates, avert 不行?
usually the first to spot data that were inconsistent with other findings, in this particular experiment she let a number of _____ results slip by.
1.inaccurate
2.verifiable
3.redundant
4.salient
5.anomalous