________ so many people in the United States been out of work as today.
C
暂无解析
Whenhesuddenly________upthesubjectofgeneticengineering,therewasanembarrassedsilence.
Thefarmerhadtowearheavybootsinthewinterbecausethefieldsweretoowetand________.
________withthesizeofthewholeearth,thehighestmountainsdonotseemhighatall.
Hethoroughlyunderstoodthesociety__________.