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【题目】水果玉米既可生食,也可煮熟吃,剥下籽粒能做菜,是一种新兴休闲、保健营养的食品。据此完成下列各题。

【1】在我国北方种植的水果玉米,其甜嫩程度优于南方,主要原因是我国北方( )

A.地形平坦 B. 昼夜温差较大,生长期长 C. 水源充足 D. 热量充足

【2】目前以水果玉米为原料的加工方法及产品主要有:真空保鲜果穗加工、速冻果穗加工、嫩果籽粒罐头,以及甜玉米浆和甜玉米汁等饮料制品。这些加工企业的布局除了要考虑原料外,其次要考虑的要素是( )

A. 交通 B. 水源 C. 劳动力 D. 市场

【答案】

【1】B

【2】D

【解析】

试题分析:

【1】根据我国南北方地理环境差异可知,我国北方地区纬度高于南方,故热量条件不到南方地区,北方地区热量较少,但作物生长的周期长,有利于有机质的积累,故在品质和甜嫩程度上均优于南方,根据夏季风进退的规律,我国南方地区雨季长,北方地区雨季短,故南方地区水资源较丰富,南北方的土壤从总体上来讲,不能说那个地方的土壤肥沃。

【2】水果玉米栽培时须与其他作物隔离300米以上,虽然ABD都有一定道理,但最主要的是防止其他作物与之争水争肥,保证其配置不受影响,该类企业生产的产品易腐烂变质,可运性差,其布局除了要考虑原料外,其次要考虑的因素是市场。

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