题干
( )
A：How old are you，Gary?
B：Where is my sweater，Mum?
C：What are you going to do this weekend，Ben?
答案(点此获取答案解析）
C
( )
A：How old are you，Gary?
B：Where is my sweater，Mum?
C：What are you going to do this weekend，Ben?
分别代表磷酸、脱氧核糖和碱基，在制作脱氧核苷酸模型时，各部件之间需要连接，下列连接中正确的是（ ）