A:f(n)+n-1
B:f(n)+
C:f(n)+n+1
D:f(n)+n-2
下列各句的句式与其他三句不同的一项是 ( )
读珠江三角洲和新疆示意图,下列叙述正确的是( )
We want students for the school show. If you _________ play the guitar, please talk to Mr. Zhang after school.