Scientists believe that human evolution______ A: has seldom been accompanied by climatic changes B: has exerted little influence on climatic changes C: has largely been effected by climatic changes D: has had a major impact on climatic changes

The fields give high and stable yields ____________ climatic circumstances.

The fields give high and stable yields ____________ climatic circumstances. A: regardless of B: as for C: due to

The field give high and stable yields ______ climatic circumstances. A: regarding B: regard of C: regardless of D: regardless

( ) is the most important climatic factor affecting water erosion. A: Rainfall B: Temperature C: Solar power D: Wind

If we continue to ignore global warming, we will certainly suffer the _____ effects of climatic changes worldwide. A: dubious B: drastic C: trivial D: toxic

If we continue to ignore the issue of global warming, we will almost certainly suffer the ____effectsof climatic changes worldwide A: dubious B: drastic C: trivial D: toxic

If we continue to ignore the issue of global warming, we will almost certainly suffer the ______ effects of climatic changes worldwide. A: trivial B: B．dubious C: C．toxic D: D．drastic

In this passage the author briefly describes ______. A: the different seasonal changes B: the effects of climatic change on msn and beasts C: the Gobi as a terrible place to live in D: the seasonal cycle of the Gobi

If we continue to ignore the issue of global warming, we will almost certainly suffer the ___effects of climatic changes worldwide.<br/>____ A: dubious B: drastic C: trivial D: toxic