在租船运输中,当租船人运送的是自己的货物时,船东签发的提单起证据作用。租船人与船东之间的权利义务以提单为准,而不是租船合同。 ( )
参考答案:错
—Do you regret not having accepted their invitation?
—Why should I? I as much, but I’m glad to devote myself to what interests me most.
A.didn’t earn
B.don’t earn
C.hadn’t earned
D.haven’t earned
单项式-πr2的系数是( ),次数是( );多项式3a2b2﹣5ab2+a5﹣6是( )次( )项式,常数项是( )。