In 1900, the energy derived from burning petroleum was only four percent ______ of coal.
A、thatA
暂无解析
There ______ nothing more for discussion, the meeting ended earlier than expected.
Whilecrossingthemountainarea,allthemencarriedgunslestthey______bywildanimals.
OneoftheresponsibilitiesoftheCoastGuardistomakesurethatallships______followtrafficrulesinbusyharbors.
If you’re sitting around a lonely campfire at night, the howl of a wolf can sound pretty______.
In1900,theenergyderivedfromburningpetroleumwasonlyfourpercent______ofcoal.
