若奇函数f(x)=x3+bx2+cx的三个零点x1、x2、x3满足x1x2+x2x3+x1x3=-2，则b+c=（ ）。
-2
我某出口企业以CIF术语与外商签订一份出口合同，买卖双方在合同中未规定保险险别，按照《INCOTERMS 2000》的规定，我出口企业只负责投保( )。
A．CIC的一切险
B．CIC的水渍险
C．CIC的平安险
D．CIC的平安险和水渍险
Everyone except Scott and Alan ____________there when the sports meeting began.[ ]
A. is
B. are
C. was
D. were
