【題目】關(guān)于黃河描述錯(cuò)誤的是

A.黃河發(fā)源于青海省,從山東省流入渤海

B.黃河下游流經(jīng)黃土高原,水土流失嚴(yán)重,成為世界上含沙量最大的河流

C.黃河塑造并灌溉了寧夏平原和河套平原

D.黃河流經(jīng)寧夏、內(nèi)蒙古和山東等省,低緯流向高緯的河段易形成凌汛。

【答案】B

【解析】

黃河發(fā)源于青藏高原的巴顏喀拉山脈,注入渤海。全長(zhǎng)5464千米,是我國(guó)的第二長(zhǎng)河。從地圖上看,黃河干流像一個(gè)巨大的“幾”字,年徑流量只有60多億立方米,約為長(zhǎng)江的1/15,而且70%-80%集中在夏秋季,要支流:洮河、湟水、汾河、⑥渭河。

黃河源自青藏高原的巴顏喀拉山,流經(jīng)青海、四川等9省區(qū),從山東注入渤海,全長(zhǎng)5464千米,黃河中游流經(jīng)黃土高原,由于水土流失嚴(yán)重,河流泥沙大增,成為世界含沙量最大的河流。黃河在寧夏和內(nèi)蒙古塑造并灌溉了寧夏平原和河套平原,使其成為“塞上江南”,流經(jīng)寧夏、內(nèi)蒙古和山東等省,低緯流向高緯的河段在冬季的封河期和春季的開河期都有可能發(fā)生凌汛。故選:B

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