A.2 B.20 C.50 D.8
A.家庭經(jīng)營(yíng) B.個(gè)人經(jīng)營(yíng) C.請(qǐng)幫手經(jīng)營(yíng) D.合伙經(jīng)營(yíng)
A.半數(shù)以上 B.1/3以上 C.全體 D.1/4以上