两个主体与多个客体的谈判叫做（）

A.双边单一型谈判

B.多边单一型谈判

C.双边统筹型谈判

D.多边统筹型谈判

Any action to avoid collision shall,if the circumstances of the case admit,（）,made in ample time and with due regard to the observance of good seamanship.

A.be initiative

B.be positive

C.be negative

D.be positively