Others argue that since the earth has endured a long string of ice ages in the last two millionto three million years, any warming is ________ to be temporary.
B
暂无解析
Whenhesuddenly________upthesubjectofgeneticengineering,therewasanembarrassedsilence.
Iboughtthiseighteenthcenturywritingdeskataquite________price.
________,Johnhasbeentoseveralforeigncountries.
________withthesizeofthewholeearth,thehighestmountainsdonotseemhighatall.