把多项式2r3-1+34πr2-r按r升幂排列为:2r3-34πr2-r-1.
故答案是:2r3-34πr2-r-1.
影响客户期望的因素的第一个因素是()
A.客户以往的消费经历
B.他人的经历
C.企业的宣传
D.客户的学历
()should be responsible for loading,handling,stowing,carrying,keeping,carring for and discharging the goods carried according to the normal practice.
A.The shipowners
B.The shippers
C.The carriers
D.The ship’s officers