【題目】某地區(qū)人口出生率為3.4%，而死亡率為1.2%，則下列敘述正確的是

A.人口的自然增長(zhǎng)率為3.2%B.人口的自然增長(zhǎng)率為2.2%

C.人口的自然增長(zhǎng)率為-2.2％oD.人口的自然增長(zhǎng)率為0

【答案】B

【解析】

人口增長(zhǎng)率是一定時(shí)期內(nèi)(通常為1年內(nèi))由人口自然變動(dòng)和遷移變動(dòng)而引起人口增長(zhǎng)的比率。人口增長(zhǎng)率也可以稱為人口增長(zhǎng)速度。由于人口遷移是否會(huì)引起人口總量規(guī)模發(fā)生變動(dòng)，是有一定地域條件的。人口增長(zhǎng)率是反映人口發(fā)展速度和制定人口計(jì)劃的重要指標(biāo)，也是計(jì)劃生育統(tǒng)計(jì)中的一個(gè)重要指標(biāo)，它表明人口自然增長(zhǎng)的程度和趨勢(shì)。

人口自然增長(zhǎng)率=（年內(nèi)出生人數(shù)-年內(nèi)死亡人數(shù)）/年平均人口數(shù)×100%，或者人口出生率-人口死亡率。該地區(qū)人口出生率3.4%，死亡率1.2%，則該地的人口自然增長(zhǎng)率是3.4%-1.2%=2.2%。故選：B。

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