Be ________. Make sure not to make the same spelling mistake next time.

A．helpful

B．careful

C．useful

D．peaceful

胸导管经哪个膈裂孔进入胸腔()

A．下腔静脉孔

B．胸腹裂孔

C．主动脉裂孔

D．食管裂孔

E．胸导管裂孔