饮食与癌症的关系是复杂的，饮食既能致癌，又能防癌、抑癌。
正确
暂无解析
_____regulartraininginnursing,shecouldhardlycopewiththeworkatfirst.
_____time,he’llmakeafirst-classtennisplayer.
_____theirhelp,wewouldnothavesucceeded.
_____,hecannowonlywatchitonTVathome.
Iwastohavemadeaspeechif_____.
