[题目]“秋天.是水稻丰收的季节.秋分后的黑土地上垛满需要晾晒两周的稻谷.独特的土壤.气候条件.使水稻中决定营养成分的干物质积累丰富.脱壳后.米粒饱满坚硬.色泽清白透亮.这是中国最好的稻米.需要经过138天漫长的生长期. 这是著名美食节目第二季关于五常大米的描述.据此.回答下列各题.[1]五常大米成为全国最好的稻米的优势条件是①热量充足� 题目和参考答案——青夏教育精英家教网—

题目内容

【题目】“秋天，是水稻丰收的季节，秋分后的黑土地上垛满需要晾晒两周的稻谷。独特的土壤、气候条件，使水稻中决定营养成分的干物质积累丰富。脱壳后，米粒饱满坚硬，色泽清白透亮。这是中国最好的稻米，需要经过138天漫长的生长期。”这是著名美食节目《舌尖上的中国》第二季关于五常大米的描述。据此，回答下列各题。

【1】五常大米成为全国最好的稻米的优势条件是

①热量充足②生长期长，有机质丰富③日照时间长，光照充足④土壤肥沃，使用的化肥少，⑤宣传力度大⑥劳动力充足

A①②③ B．④⑤⑥ C②③④ D．①⑤⑥，

【2】促使黑龙江五常由“种稻禁区”转变为全国最好的稻米产区的主要原因是

A机械化水平的不断提高 B．优良品种的引入和培育

C．交通运输条件不断完善 D。农田水利设施不断改善

【答案】

【1】C

【2】B

【解析】

试题分析：

【1】五常大米成为全国最好的稻米，主要原因是生长期长，有机质丰富、日照时间长，光照充足、土壤肥沃，使用的化肥少，所以C正确。

【2】促使黑龙江五常由“种稻禁区”转变为全国最好的稻米产区的主要原因是优良品种的引入和培育，所以B正确。

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