【題目】下圖是“長江干流流經(jīng)的省級行政區(qū)域示意圖”。讀圖完成下列各題。

【1】圖中各省市區(qū)編號是2010年某項指標在全國省級行政區(qū)中的排名，該指標可能是

A．人口 B．面積 C．城市化水平 D．經(jīng)濟總量

【2】長江中游②河段的特征是

A．江水渾濁含沙量大 B．水量巨大水能豐富

C．河道彎曲水流平緩 D．峽谷幽深猿聲鳴啼

【答案】

【1】A

【2】C

【解析】

試題分析：

【1】圖中各省市區(qū)編號是2010年某項指標在全國省級行政區(qū)中的排名，該指標中排名最高的是四川，四川的人口是圖中各省中最高的，A對。圖中各省面積最大的是西藏，B錯。城市化水平最高的是上海，不可能排名靠后，C錯。找一個特殊例子，經(jīng)濟總量上海一定高于重慶，D錯。

【2】長江中游②河段流經(jīng)平原地區(qū)，落差小，河段的特征是河道彎曲水流平緩，C對。水流慢，泥沙沉積，江水含沙量較小，A錯。落差小，水能不豐富，B錯。峽谷幽深猿聲鳴啼是①河段的特征，D錯。

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