In 1900, the energy derived from burning petroleum was only four percent ______ of coal.
A、thatA
暂无解析
______ the popularity of robots in Japan, the country ’s robot-production growth is slowing down.
Hertalentandexperience______hertotherespectofhercolleagues.
Whilecrossingthemountainarea,allthemencarriedgunslestthey______bywildanimals.
If you’re sitting around a lonely campfire at night, the howl of a wolf can sound pretty______.
OneoftheresponsibilitiesoftheCoastGuardistomakesurethatallships______followtrafficrulesinbusyharbors.
