数组q[M]存储一个循环队，first和last分别是首尾指针。如果使元素x出队操作的语句为“first=（first+1)%m, x=q[first];”。那么元素x进队的语句是_____。

A．(rear-length+m+1)%m

B．(rear-length+m)%m

C．(rear-length+m-1)%m

D．(rear-length)%m

A．(front-rear+1)%m

B．(rear-front+1)%m

C．(front-rear+m)%m

D．(rear-front+m)%m

(38) A．(front-rear+1)％m

B．(rear-front+1)％ m

C．(front-rear+m)％ m

D．(rear-front+m)％ m

A．front=(front+1)%(m+1)

B．front=(front+1)%m

C．rear=(rear+1)%m

D．front=front+1

A．front:=front+1

B．front:=(front+1)mod m

C．rear:=(rear+1)mod m

D．front:=(front+1)mod(m+1)

A．front:=front+1

B．front:=(front+1)mod m

C．rear:=(rear+1)mod m

D．front:=(front+1)mod(m+1)

A．sq↑．front：=sq↑．front+1；

B．sq↑．front：=(sq↑．front+1)%maxsize；

C．sq↑．rear：=(sq↑．rear+1)%maxsize；

D．sq↑．front：=(sq↑．front+1)%(maxsize+1)；

A．(rear-front+re)mod m

B．(rear-front+m+1)mod m

C．(rear-front+m-1)mod m

D．(rear-front-m-1)mod m

A．(rear-front+m)mod m

B．(rear-front+1)mod m

C．(rear-front-1+m)mod m

D．(rear-front)mod m