题干

读右图,判断下列说法正确的是  (    )


A:R1门槛人口最小,R3门槛人口最大  

B:R2的中心地级别比R1低              

C:R2比R1所需的门槛人口大         

D:R3服务范围最小,R1门槛人口最小

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答案(点此获取答案解析)

B

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名著阅读:读下面的小诗,回答问题。
                                                                                                 小小的花,
                                                                                                 也想抬起头来,
                                                                                                 感谢春光的爱——
                                                                                                 然而深厚的恩慈,
                                                                                                 反使她终于沉默。
                                                                                                 母亲啊!
                                                                                                 你是那春光吗?